To some it's not really "security". At least it's not securing them from their greatest "threat" (read: annoyance): so-called "tech" companies engaged in data collection, surveillance and advertising services

In fact, it's securing _the companies_ against potential competitors and users who might raise privacy concerns

The Fortune 500 "MiTM's" TLS traffic from their local networks

Every individual with a local network should also be doing this

I prefer haproxy to mitmproxy. It's faster