It's only theirs if society is willing to enforce that claim. There is nothing sacred about prevailing property laws. They can easily be changed if society deem such actions to be desirable. The issue is whether we ought to do so.IT'S THEIR MONEY.
Are you suggesting that we should not let our sense of fairness interfere with the prevailing order of the universe? If so, why not?It isn't about "deserve" and there is no injustice at play whatsoever, unless you think the universe is inherently unjust, since some people naturally have more economically valuable skill sets than others. "