Everyone else may be "getting rich", but I bet that person changes every night. In truth, they're probably just trading money back and forth.

If you manage to come away each time with even just 1 cent more than you started with, you're probably the only one really beating the game, and having a little fun while you're at it. Keep playing solid tight poker and they'll all slowly drop cash in your pocket without realizing it. Also, you will only occasionally clean up at the table with tight play, so no one will become scared of playing with you. Instead, they'll all look to shy away from whoever the last "big winner" was while you slowly build your winnings.