yep, let's buy them a Nintendo :)

Seriously now: if they have money, it's up to them to find a meaning of life. Not having to work, doesn't mean you shouldn't work. You can help with old people, or educate the youth. You can work on some very non-profitable, but good and meaningful agricultural thing. You can fix your city. You can clean the street. You can work on open source software. You can build furniture.

Giving money just to the poor is stigmatizing, and very bad for mental health as you pointed out. A universal measure would be very different tho.