To be specific, not all teardrops indicate that the person is a murderer. The teardrop is specifically in remembrance of someone else who was killed.
An empty teardrop indicates the death hasn’t been avenged; a half-filled one that someone else killed the killer; and only a full teardrop means that person killed the killer.
I'm not saying they need to remain social pariahs. I'm saying that if you set out to collect a list of people who have doing shady things, and you are explicitly creating a category of those people who have been convicted of crimes and sent to jail, it makes little sense to break that down into "currently in jail" and "done being in jail." They are equally 30 under 30 people who were later convicted of crimes and sent to jail.