Yes, like someone else said, that's not necessarily true or obvious. There's a DMV in every major city in the country, there are veteran services, immigration offices, department of defense, department of human resources, housing and urban development, and all the other alphabet agencies in almost every major city. There are hospitals, universities, and research labs in every major city. There are police departments, sheriff's departments, SWAT teams, FBI teams, and ATF teams in every major city. And in this day and age, remote work is a thing -- technology in general is a thing.
I don't see any reason I need to give up anything (other than maybe a huge salary) to work on these problems. The true roadblock for me, I believe, is just a lack of knowledge and education on those particular issues.