"subsidizing person A and keeping B the same is exactly the same as keeping A the same and taxing person B... Your changing everyone's relative place in society"
I don't think this 'zero sum' view is helpful, but what I have a real problem with is when people only apply their 'beliefs' selectively - you have to logically consistent.
If this is your view, surely you should be More offended about extremely rich people paying zero tax, getting government bailouts when they mess up, than you should be concerned about poor people being slightly less poor? Is this actually a view you believe in, or is it just an excuse to keep poor people down?
This is like 'pro life' people not supporting healthcare, or 'freedom' libertarians supporting civil forfeiture and surveillance or 'personal responsibility' people making up excuses for why executives shouldn't be charged after they make a decision that kills several hundred people.
"elevating the people that have behaved less responsibly"
We don't actually know that, maybe person A was on track to pay off his student debt, and then someone in his family had cancer or got hit by a bus. Person A might actually be more responsible, being able to solely focus on your career is a privilege that some of us don't get