my experience has been that people put in crazy hours to get onto the top management gravy train in normal companies. As a single mother, it is virtually impossible for me to emulate, therefore my only chance is to start my own business.
If I were a businessy-type person (which I'm ont!) I'd far rather start my own business than work for some huge faceless corporation. I liked the bit where it said that women are more willing to take risks with their career -without being too sexist, do you think that's because blokes have to work to support families etc and therefore can't afford to take risks? whereas generally there's less financial pressure on women (I said generally!) and therefore women can tinker with the format a bit more.