Obviously, pitchers are important. I could just never relate to not playing every day. Hanging out in the district office bullpen most of the time sounds quite boring. Besides, pitchers may be well groomed and clean, but they get hurt a lot. They have ailments invented just for them, like tendinitis and rotator cuff stuff, which are just tricky words for paid administrative leaves.
Catchers are just sore all the time.
I've known more than a few pitchers and superintendents who have thrown a no-hitter or two and then were washed up the very next season. I also never understood the catchers who wanted to try pitching, thinking they were moving up or something. Pitchers don't even wear protective cups, for God's sake. There are a lot of old catchers. Like principals, most have more than their share of warts and scars.