If the inequality is artificial, it might be that an artificial intervention will reverse it. If it's not, than so God help us. A democratically "elected" Robin Hood will probably just take a lot from the rich and give a little to the poor to keep being "elected" democratically.

On another side of life, the moment people have enough to pay the bill, anything more will not make them any happier. Leveling the income or the wealth is not doing anything effective to increasing happiness. What's and where's the problem of inequity? The fact that I can't afford a luxurious yacht trip?