In my case, it was a method of receiving attention. Being a fascist fundamentalist theocrat made me feel as though I had some degree of power. The root of the problem was that I loathed myself.
Getting laid changed everything. I gained confidence, started dressing better, got a decent job, etc. I realized that nobody likes a controlling asshole...or at least not the sort of people with whom I wish to associate. I learned that I actually like people who think for themselves, even when I passionately disagree. It makes life interesting.
Yes, pussy taught me all that.