What you're pointing out is that Star Trek makes no sense. The original Star Trek technical manual stated that they had what Neal Stephenson would later call "m

What you're pointing out is that Star Trek makes no sense. The original Star Trek technical manual stated that they had what Neal Stephenson would later call "matter compilers" and used them for everything (the same technology that allows transporters to work creates food and clothing and recycles waste). And Star Trek only gets more contradictory baggage as it goes on (in one episode of TOS they essentially resurrect the bridge crew using transporters; so I guess they could replace all the dead security officers too). It's explicitly stated, many times, that there's no money. But none of the implications of this are followed through. And this nonsense suffuses the entire show, not just the economics. The new J.J. Abrams movies manage to be even worse, but at least they're fast-paced and the actors are trim. (Why does the Federation need to make deals with Khan when Spock just gave them interstellar transporters that can penetrate shields and target starships moving at warp?) About the only thing that makes sense in Star Trek is that their security teams are utterly incompetent. In a world with infinite wealth and resurrection machines, there's little incentive to stay in shape and learn difficult (and painful) combat skills.