Exactly! You got a huge population of men in the SF area who want to work 70-80 hours/week. This leaves the door wide open for the men who have time for a relationship. I have found that women in SF are desperate to find men that will make time for them.
I wish I could tell all you guys working 70-80 hours the stories I've heard from 45-year-old guys who did that when they were your age. Short version: cut that out.