No, with an extra teammate the expectations on your team increases, so you have to work hard enough to pay for that guys salary as well.
Lets extend this a bit, would you prefer to work in a team with 5 incompetent but nice persons who don't contribute anything, so your work has to be enough to pay all their salaries, or would you want to work with 5 assholes who work hard enough that you can slack all day because they pick it up? I'm sure a majority would prefer the second scenario, the first scenario would lead to burnout really quickly and soon they will call you the toxic asshole genius.
I've worked with people that refuse to do anything in git other than commit, which means:
- new copy of the repo every time origin changes
- spending a week manually rebasing a dozen commits (obviously with many unique mistakes each time)
and refuses to upgrade their monitor from 1366x766 even after being given the money to do it, because "it's not necessary"
At worst, the former is a neutral in his overall contributions, whereas the latter will be a net negative.