With £10M? I mean, some good, surely. But not really a lot. Is there something you have in mind, specifically?
This kind of logic is just jealousy. "They have money I don't and spend it on things I don't value" is true of every entity wealthier than you. It's true of your consumption too: how many $7 lattes have you purchased that could have fed a whole family, as it were? It's true of corporations and bureaucracies and governments too, which is why libertarianism is so tempting.
But there's no world where everyone agrees on what stuff we should value, just like there's no world (or at least no feasible world) where people aren't able to spend wastefully, because both of those are at their core subjective decisions.