Are you going to be the only one who likes to go fishing on a boat? Are you going to be using that boat all the time? Do you need to own the boat in order to enjoy fishing from it?
Should we, as we are facing the rise of extreme poverty and people starving all over the world, really worry about people's "need" to fly around in sea planes? Can't we worry about sea planes once we've sorted the eating thing? And could we then maybe think about it in terms of how we're going to realize sea planes for those who want them without screwing over both humans and nature? Markets can't only exist as institutions framed by capitalist interests. A healthy market in a world I would like to live in exists to allocate ressources where they're needed. Needed, not wanted by the masters of "playing the system for generations".