I think what he is saying is that smart people need to work on fixing the system, for example by making sure people do not get jailed unfairly, rather than propping it up by helping prisoners stay in prison. Personally, I would feel pretty bad if someone who gets jailed for marijuana possession is kept in jail with the use of software I created.
He/she probably worked on the control systems that allow cells to be locked/unlocked from a central point, or something else that mundane. Not some pie-in-the-sky system that determined guilt, which would seem to be where your problem lies.
I think what he is saying is that smart people need to work on fixing the system, for example by making sure people do not get jailed unfairly, rather than propping it up by helping prisoners stay in prison. Personally, I would feel pretty bad if someone who gets jailed for marijuana possession is kept in jail with the use of software I created.