But at least here in the United States, that's a pretty common attitude that makes it hard for people who have done wrong in the past to integrate successfully back into society.
It’s not just the USA, and it happens for reasons.
In the hypothetical, the person’s #1 skillset was also related to the crime they committed. Hiring past known offenders whose criminality is related to a particular job is a legal liability. Look in any country, and you’ll see certain crimes will bar you from certain kinds of employment. Forgers won’t be able to be bank tellers, people with drug convictions won’t be hired in the medical field. Violent behavior towards children will effectively bar you from working as a teacher, Commit a crime with a gun, forget about a career in law enforcement.
I was investigated by the FBI before being allowed to attend law school. Certain crimes would have gotten me booted. Not only that, those same crimes can get me permanently disbarred.
Going further, in one of the actual cases in particular, the lead singer of a Christian metal band tried to hire someone to kill his wife, but he was caught and did his time. He reunited with his band- with his wife’s blessings- and his return was embraced by his fanbase.…but a lot of other bands refused to be on tour or festival bands with him. He and his band may be able to record music and sell it, but they’re currently cut off from one of the biggest streams of potential income.
In some countries, if you lose your driver’s license for certain reasons, it’s permanently revoked- you
cannot get it back. If your job involved driving, you’re out of luck.
In none of those cases is there any sense in which a person could reasonably claim to be entitled to have a particular form of employment. The reality is, in every society, some punishments exist that go beyond mere fines or jail time. Certain crimes have lifetime repercussions. If you can’t handle that,
don’t do those crimes.