it doesn't work for me
It doesn't work for men! We are waaaay more disadvantaged in the game of finding casual partners. Blame it on the economic law of supply and demand, perhaps.
It's actually very easy: you need to possess and display power and influence. With sufficient power and influence you don't even need to hide - you can openly have as many women as you want. Regardless of power and influence women still have to hide their extramarital dalliances unless they want to lose the marriage. Powerful and influential men don't.
So, stop complaining and get to work on becoming a millionaire