Well, St Francis stripped himself naked in the town square of Assisi to make his point about possessions.
But I think something should be noted about both Buddah and St Francis: it was their own possessions they got rid of, not possessions in general on behalf of other people.
Physician, heal thyself. If they want to get rid of their own overpriced athletic shoes, fine; but burning a pile of shoes bought for that purpose is silly and makes them look like wack-job Muslims.
What if everyone had a begging bowl and there were no millionairs and billionairs to put anything into it.