In more recent sex-and-stimulant-related social science, A Study has shown that people who drink earn 10 to 14 percent more than people who don't.
Read further and you find out that the social drinkers earn more, not the people who go straight home and break out the Jack Daniels or sit in a corner in a dark bar and pickle their liver in gloomy solitude.
People who socialize tend to get further than people who don't. You could go to the bar with the social crowd and fail to make the inner circle. Would one more drink have made you suddenly bright, entertaining and accepted? If you are a geek, dork or nerd, you need to find a peer group with whom to network, or accept your lower financial status. If you're painfully shy or a crusty grouch, a lower pay check is probably a small price to pay for your privacy.
That being said, it's still a good excuse to hit the bars. Don't do it to dull the pain. Don't do it to duck your responsibilities. Don't do it to troll for easy sex. Do it for your career.