For young men who grow up in a , running drug houses and selling drugs on street corners make it possible for them to support themselves and their families as well as purchase material possessions to impress others.

Answer is criminal gang.

Explanation:

A gang can be explained or described as group of individuals coming together with a oneness of achieving a purpose. This purpose is usually achieved by illegal means, that is by violent behavior.

The criminal gang can be described as a gang which is characterized by theft, extortion and other illegal means as source of their income.

In this case, the young men that grow up in this type of environment , engage in those illegal way of making money to fend for themselves and families. And  they usually buy things in order to impress and oppress, to lure other people into their way of making income.

This way as source of income is bad and always end badly.

"it built up in the atmosphere"

i think thats it, idk, i tried looking for this exact q& a for grad. and idk if i got this question right or sorry if im wrong