drmistga,
I admire your honesty. Your points are well taken. For US grads, psych is easy to get into and I'd say most programs are simply happy to get well-adjusted US grads applying to their program.
While I don't mind the hard work or call, I think you touch upon an important point, which is that psych selects for certain personality types. While one could argue that we're already OC by being in medicine, I'd have to say that the personalities that go into psych mesh well with me. Compared to, say, surgeons, psychiatrists tend to be more open to emotions, more verbally-expressive, and more understanding of people with different backgrounds.
This fits well with me and I'm excited about what lies ahead. I think we've picked a great field and I'm excited about starting. You shouldn't have to apologize for your feelings or motivations for going into psych.