I don't get the problem here? McDonald's sponsors the Olympics and this is bad because.....?
I sponsor the Olympics with a monthly donation and, sometimes, eat at McDonald's. Should I stop my sponsorship also?
Stop having problems where there are none. The more, the merrier!
Well, the garage sale metaphor doesn't really have merit as, most people having a garage sale do so to rid themselves of items unwanted/unneeded in the home and so anything they get is gravy.