If you pollinate your "ladies" your bud grow will suffer, as the plant's energy will move to seed production. I don't know anyone who sells seedy pot these days. Selling pot is a prison felony, so I wouldn't know anything about your profits.
so isnt the cultivation of marijuana .. its worse than possession unless u sell to minors then you're fucked .. so you just recommend cutting the males out? id say about 4:1 marijuana around here is seeded ..