Human Nature

[Ivan Denisovich]

Just as you say, people have limited leverage on their own human impulses.

Or they simply don't give a shit. I don't really believe that people want to be decent. They may want others think that they are decent but that's quite the difference.

Plus, in a world of suboptimal choices as Nudger pointed out, if we fed all the starving poor people we might just end up with even more starving poor people.  We couldn't change their problems with poor agricultural environments and over-population.

Or we would simply pay more for some goods or go without some luxuries. This is irrelevant however as I don't see worldwide protests against money being wasted on frivolities when there are thousands starving.