Well, if you bet 1g to start off with, eventually you COULD loose aaall the time, but if you win once you only profit 1g that you started bidding.
It's like saying 'Hey! Bet on all the numbers on the Roulette except ONE! If you bet 1$ on all you can win 36$! =1$ profit!!'
It's still as RNG based, it's just a 'safer' way to win. And everyonw knows that id there's higher chance of winning, there's less to win.
Common sense!