"But they loved their mums"
If you wanna see real gangsters, google the Mexican Sinola cartel - in particular their chain saw video.
All the people I've come across, namely two people, who operate in that field , you'd never know it and they definitely don't throw their weight around or attract attention. They don't run a 'security' firm, take gear, hang out in bodybuiling gyms and sit ringside. They keep completely out of it.