Why? It's handy to have perspectives from all stages of the process (even if the math in the OP was maybe taking things a bit far). One of the problems with people who have advanced a long way down the line is that they've forgotten the actual things that got them where they are / have a slightly rose tinted view of things.

Also, many people are unlikely to get the opportunity to remote from their first startup gig out of college (and would benefit from not remoting so they can learn about the workplace and how things get done, etc).