Because evil is Not primarily about inflicting premature death. And certainly Not when death leads to Heaven.
Evil is about damnation. Therefore, for evil, death is something to be delayed until after the individual has made a solid choice of Hell. Ultimately, for evil; human suffering is only desirable when suffering tends to lead to rejection of God, Good, Heaven and Creation.
If They were primarily a death cult, then the developed nations would not be (as they currently are) fuller of old people than any society ever in history.
If They were primarily motivated to cause mass death (sickness and suffering) then it would be trivially easy for Them to inflict a great deal more of it.
Obviously, They greatly enjoy human suffering - especially fear: both long term angst and acute terror - and at the lower levels (among the minions of 'chaotic evil') that may be the mastering passion.
But a mob of lust crazed sadistic demons could not pursue the multi-generational strategy of damnation that has all-but inverted the moral and aesthetic basis of society; and made lies mandatory and truth taboo as Hate Facts punishable as Hate Crimes.
The Establishment leaders and rulers are long-termist strategists of evil; focused on their primary ultimate purpose, which is damnation.
So it is much closer to reality to emphasise that the Establishment are Satanists - "Satan worshipping paedophiles", for example - but for most mainstream people this is all just a joke.
Most people don't believe in damnation, because they don't believe in Heaven; they think Satanism is a joke, because Hell is a joke. Therefore the Establishment can operate on their major task without need for secrecy and in full public view.
It is only the second-order (short-termist, self-gratifying, means to an end) tactics that need to be concealed. Sexual torture of children, slavery, mind-control, intimidation and bribery and all the rest of it.
These are secret because the public find them repulsive, people are misled into thinking that these secret goals are primary; but they are also secret because they are so vile that ordinary people cannot imagine anyone doing them. (And - too often - pride themselves on this limitation of imagination, on this rejection of reality.)
It is perhaps the primary role of the mass media to conceal these second order evil activities, by becoming (through addiction and censorship) the only publicly acceptable source of information.
In fact the main goals of the Establishment are upfront, explicit and official (albeit expressed in bureaucratic, hence misleading, terms); they are the major initiatives of the multi-national organisations (United Nations etc.); the government strategies, the mission statements of all the large and powerful institutions (government, charity, corporations, law, education, 'science', the mainstream churches, the mass media etc).
The only concealment or distraction is that the true goals are often expressed as their reciprocals. Anti-Christianity is expressed as pretended pro-multi-culturalism. Anti-white native men is expressed in terms of systemic and personal preferences pretending to favour women, immigrants and migrants and people other-than white.
The sexual/ gender revolution pretends to liberate when its intention is to enslave and mind-control the masses - economically, sexually and in every other way.
The global system of electronic omni-surveillance and micro-control is presented as a means of protection.
Such excuses would be seen immediately as the naive and dumb manipulations they are by any religiously rooted society; but when the masses are afflicted by the psychotic disease of atheism, their gullibility, credulity and incapacity to reason cannot be over-estimated.
But anyway, the point is that the Establishment are Not primarily trying to harm people; and those who claim they are invite easy refutation. If False Flag terrorist atrocities were designed to harm people, or to make money; there would be a lot more of them, and a lot larger scale. If mass killing and population reduction was their goal; then the world and national populations would be shrinking. If they wanted civil wars - there would be civil wars.
Since none of this is happening - and ought to be happening if They were a death Cult; the reality of a strategically-evil Global Establishment is easily denied because refuted by experience.
If, instead, atrocities by the Global Establishment are understood as primarily a means to the end of damnation, which entails a careful balance of mass manipulation - then it all falls into place. But for that you must believe in the reality of the demonic, who oppose God and God's plans for creation.
Yet the masses are pre-immunised against such simple reasoning by their materialism, atheism, hedonism. They are being incrementally herded into a bureaucratic totalitarian Hell; while themselves believing and asserting that this Hell is a Heaven of sex, fun, distraction and unbounded human possibilities...
This isn't rocket science... Man just-is a religious animal. When God is denied, Man becomes insane, incoherent - loses even basic common sense. When God is denied, nothing makes sense - and people cannot see the obvious. When God is denied - evil can therefore operate in plain sight.
When God is denied, evil takes God's place; and we live in an world of inverted values that - we insist, looked at in properly - is actually the right-way-up.