There are just so many ways in which modern culture is actively subversive, inverting values and corrupting behaviour - that to focus upon any in particular is to invite failure.
Special attention paid to a specific response to a specific problem (which will usually result in the need to do something quite complex and effortful) - opens us up to a weakened and distracted response to the many other simultaneous problems.
If we take a single-issue approach to dealing with our sins, in a world where there are So Many sins, we will end-up chasing our tails. Even if we weed-out one form of sin by great effort, meanwhile the others will have grown unchecked*.
What is required is that values we live-by, be rooted in some source of real and true values that is autonomous from the mainstream culture.
In other words; when Western civilization is become an ocean of corruption in which we must swim - because its corruption has invaded all institutions; we can no longer lead a Good life by the double-negative strategy of avoiding evil; but only by the positive strategy of pursuing Good.
And to do this requires living in accordance with a source of Good that is independent-of, and uncorrupted by, our civilization.
Then it does not matter what that culture is - past, present or future; nor what is does to us - because so long as we are rooted in reality and truth, we can recognize and repent whatever is corrupting, subversive or value-inverting.
The traditional way for this to happen, was that the individual would obey the guidance of a religious group (typically a church) that was autonomous and Good.
But now there are no churches or other religious groupings that are both big-enough and autonomous from the subversions of culture nowadays - and which can be relied-upon to remain autonomous for as long as we may need them.
To be rooted-in a church, is therefore merely to be rooted in a variant of the mainstream corrupt-culture.
The other way is for each individual to 'obey' the guidance of some internal source which is both Good and autonomous.
Is this possible? Is there a source within-Man that is sufficiently autonomous of the evils of culture, and also Good?
For me, the answer is Yes - because this is a matter of metaphysical Christian theology.
In other words; my fundamental beliefs concerning the nature of God and divine creation assume that God is Good, and we are God's children - and therefore we each have within us that which makes God Good.
In other words we each have in us (because we are God's children) a True and Uncorrupted Self which is in harmony with divine creation, and from-which we can be guided towards that which is Good.
If one believes-in a real-divine self, and that this True Self can be 'consulted' for guidance; then that potentially solves the problem of living in a corrupting civilization where that corruption includes the churches.
Furthermore, in principle, each of us can deal with problems of corruption on an individual, case-by-case basis; rather than by - as with traditional religions - seeking generic solutions to particular classes of problem, or following general guidelines such as laws or prescribed practices.
It all seems to depend, in the first instance, on whether one believes this source of inner guidance is real/ true/ possible.
*It is possible that a person may be dominated by a particular besetting sin, which needs to be weeded-out before anything else can be done - alcohol or drug addiction is an example. But we should not pretend that dealing with a single sin makes someone overall a better person - assuming that the sin was already repented.
I mean that what is vital with a besetting sin is repentance. Reform of a sin is good, in and of itself; but only Good overall when it is indeed Good overall!
Reform may, or may not, be possible in a particular instance; but it is at best is preparation for a subsequent change in overall attitude to life.