I think regarding this question, and specifically regarding those who frame wealth redistribution as "stealing from the rich", the question should be posed whether the system which made the wealthy rich in the first place was actually one based on fair distribution in a manner proportionate to the work done.
In a number of cases in the States it's pretty hard to argue that the work done by some members of the wealthy justifies the income gained, and so it's questionable to frame the redistribution of wealth as unfair to those "who made it" when the system which enabled them to make it wasn't particularly just (to everybody) in the first place. That's not to mention inheritance (or lack thereof) and issues with inequality of opportunity - not all men are given the same opportunities to succeed as one another, so while two individuals may work just as hard as one another, one will likely be in a better position to succeed in the first place and end up better off for it in spite of doing no more work than the other.
I realize that income inequality is just to an extent to incentivize people to work unpleasant jobs and, more generally, to serve market determinants (supply and demand for specific skills/jobs), but past a point it becomes exceptionally difficult to justify increases in income as it does further exacerbate the damaging effects that slow economic growth. That's not to mention ethical arguments regarding wealth inequality - particularly that society should sufficiently provide for those that serve the community and those who meaningfully lack the capacity (due to physical/mental handicaps) as more often than not people in the latter group can shift into the former (after dealing with a serious injury/mental/emotional issue).
In the absence of doing this, issues tend to arise that negatively impact the rest of society (crime, class and social issues), as at its base humanity best functions in groups, which in turn results in the proverbial throwing to the wolves of a part of that group generally being pretty detrimental to the whole. This is very important to consider, and I find generally overlooked, as there are roll on effects for most people that result from pulling out the safety net from underneath society's most vulnerable.