I don't necessarily think they look 'better' - just different. I would think it quite discordant to see a model wearing thousands of dollars of couture, hand sewn garments and dripping with diamonds, and absolutely no makeup. In my opinion, a model's hair and make-up are part of the canvas that the photographer has to work with.
In real life? Yes, I would think it strange to see glossy-mag level make-up on someone at the supermarket, but I don't think that's a normal occurance.
I agree with some previous posters about trying, in my own life, to make my makeup as natural as possible so that on days wear makeup is not feasible, it won't be such a shock to my system or a blow to my ego. I like makeup as a tool for expression and yes, to help out nature a bit, but I'd like to think I'm not hiding behind it.
Thanks for posting these pix, it has been an interesting read.