> I'd much rather have a well rounded individual who isn't moonlighting on other things but rather can bring his clear focused mind to the office.

I don't think it's wrong to work on side project. Some people like or want to. Who am I to judge what they do on their free time? It might happen to overlap with their job, or it might not.

But I agree, I don't require my surgeon to do surgery in his spare time. I've worked with plenty of great engineers who wanted to leave work at work, and after 40 hours of engineering, enough was enough and spent their free time doing something that wasn't engineering. I've also worked with people who did side projects, and were equally amazing.