the only thing that seperates poker from blackjack is a house edge. The person playing the house wins from time to time, but the edge is still there. Over a long enough timeline, the house can, does, and may end up winning all the players money.

You, presumably the better poker player, is like the "house" against a terrible gambler just playing poker for fun. Odds and correct play don't concern him. Or maybe they do and he just has a fuzzy understanding of what is really correct to do.

I've tripled and quaddrupled my buy-ins at a local casino $200 NL game because the players call pot size bets with draws constantly. When you have nights where they miss every time, that profit adds up massively.