I think the consensus around here is that too many high IQ people go into physics compared to what is socially optimal. Unfortunately my Google-fu is failing me and I can't find the posts/discussions I have in mind. (Anyone want to help me out?) The closest I could find is Paul Christiano's The Value of Theoretical Research.
There's also the comment of Peter Thiel at the 2009 Singularity Summit, referenced here.
But in any case note that studying physics in college does not necessarily commit one to "going into" physics. Indeed, Robin Hanson now studies economics professionally but started out studying physics!