by my standards, anyone who makes sponsored movies, is in magazines, has facebook followings if they must, pro model jackets, bindings, poles, boots, or skis, what have you. is pretty CELEBRATED therefore is a celebrity, because they're famous, because thousands if not millions know them, follow them, and celebrate their involvement in the progression, advancement, medal winnings what have yous. companies throw money at them. some of them live in shiny houses, and drive shiny cars...
a celebrity is necessarily a multi millionaire. we don't even know half of the richest people on the planet.  a celebrity is someone well known. get over it.