True, but I don't see Filenet and Neoxam ever getting big.
No, and any framework that your architectural astronaut coworkers created is most definitely not going to ever be used anywhere else you ever work. And in fact the decisions it made may well be counter to industry accepted practices outside of that company.
Less than 2 years later NeXT merges with Apple, and Steve Jobs has begun the biggest comeback in tech history, including switching Apple to Objective-C. Well then...
This sort of thing is a lottery ticket. You likely will not win, but if you do it could just make a couple extra car payments, or you could be set for life.