I don't see how either of those principles suggest I should go steal the steaks, because I could easily end up being the person who is stolen from.
Its not surprising when starving people steal, and you can't really blame them for it. And people shouldn't waste frivolously when there are people in their community that are lacking.
But adding these unwritten caveats to private property rights based on whether someone is satisfied with their lot or not... I can't wrap my head around it.