> Saving time is to me the most important point of doing a startup.
I mis-read this in an interesting way: some startup ventures may seem like "not a big deal", but if they save 1% of the US population 1 minute of time every month, that's almost 70 person-years per year.
I can't imagine how much time GMail has saved for me that I would have spent setting up mail clients. Ditto for reddit, or news.YC - there is no way I could have found out and kept track of so much information out there in the blog/entrepreneur community while being a full-time student, doing research, and working two part-time jobs.
This is not to say we shouldn't donate more of our time and money to giving to those in real need, of course, just that sometimes we give to society indirectly, or even without realizing it.