"most companies have a policy of not wanting to hire those". Exactly. Not hiring these people is a mistake. They're the best. People don't get good at this stuff in school, they get it out in the real world. Tons of cybercrimes are exaggerated by federal prosecutors that know the person they are prosecuting has no chance of winning or putting up a defense.
maybe stop putting the same lifelong label "Felon" on hackers as you put on murders and child molesters so these people can actually get employed in relevant fields?