A motivational explanation of "Lawful evil" - and its development into "Chaotic evil"

Lawful evil is totalitarian and systemic evil - its core aim is to create a machine for the corruption and eventual damnation of mankind. 

For this ultimate goal to happen entails the participants foregoing the upfront gratifications of short-termist and purely selfish satisfactions.

Lawful evil embodies some virtues (or partial-virtues), some at-least-somewhat positive values - in service to its long terms goals: values such as obedience, loyalty, hard work, deferred gratification. 

Chaotic evil is (by contrast) short-termist and selfish - but the gratifications it seeks are of a negative kind. 

(In Dungeons and Dragons terminology, the earliest most primitive form evil - coming before Lawful, which comes before Chaotic - is mostly positive in its rewards; and might be termed "Neutral" evil - I mean the evil that seeks short-term selfish gratification of a positively rewarding kind, such as the gratification of greed, lust, excitement, luxury etc.)  

Chaotic evil is therefore spiteful; it seems to harm others more than to benefit itself - or, more exactly, its greatest self-benefit (its greatest pleasure) is the harm of others. 

(The negative gratifications of Chaotic evil are a late corruption of evil; developing after someone has been sated or jaded by positive rewards.) 

Therefore Chaotic evil is primarily motivated by emotions such as resentment, revenge, and sadism. 

Ultimately; both Lawful and Chaotic evil are motivated by hatred of God and divine creation, and indeed anything created or creative. 

Lawful evil will always trend towards Chaotic evil, because Lawful evil entails doing some good in order to achieve a greater evil. 

Therefore, every individual who serves Lawful evil will continually be tempted by the opportunity for "me" to to do immediate evil, here and now; breaking the laws of Lawful evil - instead of putting-off present temptation in order to pursue some delayed overall goal.

So, Lawful evil is intrinsically unstable. 

The closer Lawful evil gets to achieve a system of damnation, the greater the commitment to evil goals of the system participants, and the greater the opportunities for doing evil ahead of time, and reaping the rewards personally rather than vicariously. 

Thus it was that when Lawful evil achieved its goals of a global totalitarian system in 2020, in the birdemic coup; within weeks The System had begun to self-destruct with Chaotic evil - e.g with "MLB" antiracism; and then escalating chaos and wars in many nations and on many fronts.