I don't think it's creepy. People make Sims of celebrities all the time and that's accepted, so why would it be creepy to put ordinary people you admire in your game? The only 'ordinary' people I've put in mine are my Simself and Hubby, but I've thought about creating one of our local newscasters. She has an interesting face and beautiful eyes that I admire. Technically, I guess she is a celebrity, of sorts, but meh... *shrugs*
You do whatever makes you happy in your game and don't worry about what others might think. Have fun and Happy Simming! :)