The Psalmist said:
Blessed is the one
who does not walk in step with the wicked
or stand in the way that sinners take
or sit in the company of mockers,
But what if you had to work with them?
What do you do??
What if you had to live with them? If they were your neighbors?? Your school teachers??
It seems that the only way to live in any kind of Holiness would be to become a monk and live in the desert, in solitude.