Exactly, I worked with a guy with a 30+ year rap sheet that read like a Russian hard times novel, most of which was true fiction. His first arrest was at about 14 for Postal Theft in about 1935, he did hard time for several years. Once discharged, he could not get a position as he was a CON, Oh, My. He was also on the Usual Suspects list and got busted regularly for the next many years, usually with no judgments or decisions, just un-arrested and released, but it sure left a trail of disrepute that could not be shaken.
In about 1973, I arranged for him to get a Coast Guard Federal license as a Mate of Yachts (no longer an active type license) to enable him to hire on as a yacht skipper/captain and upgrade to Master of Yachts (also no longer available) in a year or three as he was now insurable and bondable, took a lot of work on my part and on his over nearly two years, he came up with completely verifiable Good Guy letters from well known and significant employers over quite a few years but he still had the stigma of a long history of arrests so was unable to get a true position of responsibility. The license, not terribly valuable as yachts do not need licensed staff generally, WAS a Good Guy certificate if you will, the Feds considered him worthy of a position of trust, that translated to a paper of substantial value.
More persons in authority SHOULD take it on themselves to check credentials and backgrounds before making blanket assumptions. I KNOW it takes lots of work outside the normal lines of duty but ONE good result makes lots of effort worthwhile.