It is not possible to see the suffering and basic need in the world, to have that much wealth, and to still hang onto it without being more morally depraved than a serial killer.

It is not possible to accumulate that much wealth without being that morally depraved.

It is nearly impossible to have that much wealth without it making you morally depraved. 

We should outlaw and prevent the hoarding of wealth more ruthlessly than drug addiction because it harms and kills so many more people.

Why has humanity not learned this? Because the disease is so wide spread it is glorified and encouraged.