Charlie Sheen was a man who didn't have problems getting a woman to agree to sleep with him. That doesn't mean he had sex out of a love of exercising power instead of the normal sexual drive; the quote is telling you that he considered a prostitute's monetary cost to be a lower price than paying nothing to a girl who would then brag to all her friends and the National Enquirer that she was Charlie Sheen's girlfriend, flip out when she saw him kissing an actress, show up crying at his house in the middle of the night, etc etc etc.