That's not a lack of ambition, that's a reasonable preference. I tend to agree: if I could take over the world singleton-style and try to improve it I would, but failing that I'd work on having a fallback (escape) position first before risking myself to "save the world" for others.
I lack ambition in other ways, too. For example, I don't have a job, and I shudder in horror at the thought of having one. As far as I can tell, women usually don't want a long-term romantic partner that is neither a breadwinner nor a competent homemaker. And by "escape the world", I mostly mean "escape from the experience of living in the world," through such means as playing World of Warcraft (which, incidentally, I tired of after a few months) or the final, irrevocable escape, death.
2:45:24 PM Katja Grace: The main thing that puts me off in online dating profiles is lack of ambition to save the world
2:45:35 PM Katja Grace: Or do anything much
2:48:03 PM Michael Blume: *nods*
2:48:07 PM Michael Blume: this is indeed a problem
2:57:55 PM Katja Grace: Maybe there is a dating site for smart ambitious nerds somewhere
2:58:25 PM Katja Grace: Need to set up lw extension perhaps
2:59:02 PM Michael Blume: haha, yes ^^
3:00:40 PM Katja Grace: Plenty of discussion on why few girls, how to get girls, nobody ever says 'oy, girls on lw, want to get together some time?'
3:01:14 PM Michael Blume: somebody really should say that
3:01:34 PM Michael Blume: hell, I'm tempted to just copy that IM into a top-level post and click 'submit'
3:01:48 PM Katja Grace: Haha dare you to