The First Half of the Formula

(Pro 22:22 KJV) Rob not the poor, because he is poor: neither oppress the afflicted in the gate:

The most common pattern in Proverbs is for each verse to stand alone.  There are a few places where a longer section holds together.  Here we need to look at the next verse in order to get the full impact.

(Pro 22:23 KJV) For the LORD will plead their cause, and spoil the soul of those that spoiled them.

This is one of those cases where we are told the consequences of ignoring what we are told.  We need to remember that if we take advantage of the disadvantaged then the counsel for the other side will be God Himself.

So?  You may get away with playing it fast and loose for the day, week, year or even a lifetime.  You need to remember that eventually you will meet the Judge.