It doesn't matter what sort of game it is. Poker, boxing, football. Good players sit and wait for their opponents to make a mistake, then punish them. Great players do this too, but then when no error comes, they can also change the picture, force a mistake, then capitalise.

Adonis Storr Person A spends loads of money on rubbish. Person A plods along wishing they had nice things. Person B saves his money while he also buys stuff and sells it on for a profit. Person B then buys a nice thing for himself. Person A is now jealous and thinks life is unfair!