He's talented enough to be a top level footballer, with the capacity to earn millions of pounds each year. If he's blown away his gifts and talents because he's a woman beater and possibly a rapist, then he himself forfeits the earning potential he once had. It is not up to society to replace his lost earning potential.
Greenwood should now have to get the best job he can to maximise his earnings. That could be as a footballer, if he can find a team that would take him. If he can't, he should utilise his education and get the best job his qualifications would allow. That might be as a professor or a teacher or a driver or a cleaner or a pundit or whatever. He might need to lower his earning expectations.
If he does end up driving for Amazon, or stacking shelves, I wonder if his girlfriend and her father will continue to stick by him - for better or for worse.