If you ask an economist what's driven economic growth it's been major advances in things that mattered - the mechanization of farming mass manufacturing things like that. The problem is our society is not organized around doing that.
If you're changing the world you're working on important things. You're...
The whole system of society tells you what to do.
There is no investment you can make which will pay you so well as the effort to scatter sunshine and good cheer through your establishment.