You can't go through life being totally risk adverse, or you'd never get out of bed in the morning.
And there's nothing wrong with indulging in a bit of self pride and personal preservation. People wear glasses, get implants, style their hair, grow beards, apply make up every day - is this all "a deadly sin"?
Taking pride in your appearance, and wanting to do something to improve it, seems like a worthy way or living one's life to me. And if that involves an element of risk, then so be it, just deal with it and try to manage these perceived risks as best you can.