Well, Karen... it's sorta like this.
The original sub crews on our boats were volunteers; it's been said that you had to be more than a little crazy to climb inside an eight-foot steel pipe, lock the door, and dunk that sucker in a couple hundred feet of water for hours. But it was wartime (Hot or Cold) and they did what needed doing for their country. Of course, there were benefits, but I'll admit that with the possible exception of the poor, bloody infantry, there might not have been a tougher row to hoe in uniform.
Fast forward to today. We, most/many of us now civilians, are working on these boats - boats that are no longer in active service, no longer fighting a war. Many of the folks working on the boats are also (or still) volunteers, who now work in many of those same difficult conditions, only this time, without the support of the Big Green Machine and lots of sub tenders to feed 'em parts. In other words, after all the years of service, the guys and gals working on the boats now are fewer than full crews, trying to do the work of full crews, without the resources the full crews had.
So you tell me the answer to your questons, but for me, I can say this: Of course we're crazy. That's why we do it.
