Not ex mob/LE, is it really worth the hassle?

Sort of as per title really.

For a long time I have been looking at trying to get into the industry but I know its so hard if your not ex military or law enforcement, of course it is.

Some say its worth a try, some say dont waste your time, others tell me it mars no difference (which I don't entertain for obvious reasons).

So does anyone hear know of civilian security individuals that have successfully got into the industry, and to what end?

What's everyone's take on pursuing this if at all?

Thanks in advance.