What always amazes me about these "super-lemmings" is that they are so unaware that they are being thoroughly exploited. They don't understand basic economics, that if you have zero leisure time, all of your earnings are for nothing.
I'm sure their goals are some variation of: "I'll work 120 hour weeks for 5 years straight to make a seven figure nest egg, then retire off the interest forever."
This single variable optimization is very childish for somebody supposedly schooled in economics. Very few human decisions are based on a single variable, as we are fragile creatures with a large number of physical, emotional and mental needs that need to be satisfied on a daily basis.
Let this be a warning to all the SV hopefuls: don't be a lemming. Don't sacrifice rationality for idealism. There are severe consequences.