It depends on the organization but I see it a lot in consultancies; as consultants build client-facing skills alongside their technical knowledge they often move into leadership roles.
In the corporate world, I've seen both. However, the better managers that I've worked for have had recent engineering experience or at least can follow a technical discussion.
Apparently, Hopkins became increasingly violent when asked for a mailing address and email for the new domain owner. He pistol-whipped the victim, tased him then cocked the pistol.
Given that victim was going to end up knowing who was robbing him, he likely assumed he'd be killed after the transfer.
The NYTimes article on the study has more numbers. What's odd about DC is the number of losses seems high but it's hard to tell how big that is in proportion.
For example, Silicon Valley and San Francisco gained a huge number. However, Madison Wisconsin was in the top ten and is a much smaller metro area. Washington lost 7k but it's a big metro - especially compared to Wichita.
In the corporate world, I've seen both. However, the better managers that I've worked for have had recent engineering experience or at least can follow a technical discussion.