I think that smart people in both business and technology are attracted to hard problems that are intellectually challenging. Dealing with the corruption and the entrenched bureaucracy of local, state, and federal governments doesn't qualify as an "interesting" problem for these types of people. It's why you don't see many scientists in elected office.
I used to feel the same way, except that this really boxes "intellectually challenging" into a fascinatingly narrow set of problems.
The meme that dealing with problems of physics and mathematics is somehow harder or more noble than dealing with problems of people should probably be considered harmful.
I don't think my definition is narrow or restrictive at all. You're forgetting all the other fields of human interest, like the humanities, healthcare, transportation, engineering, the arts, etc. That's a pretty wide swath and only a small subset of the "interesting" problems in those fields are dependent on getting your hands dirty with politics.