As I'm always saying, don't overestimate the impact of house-edge on your performance. It's not that big as people might think.
Yeap, the house edge is always slightly higher than the player's, but that's enough for them to make a lot of money.
You ask me: Why?
Because even though it's a small advantage, most users continue to play while they're winning, and generally raise the stakes with money that's already in the house, thus increasing their chances of returning everything they've won.
Few are in the habit of stopping when they've won enough or restarting bets at a smaller amount.
The house benefits far more from the players' addiction than from the luck advantage.