It's exactly like the gold rush. First there were a crap ton of little prospectors. Then the ones that hit the mother load started buying up the little guys. Then the big guys started buying each other out and now we have a hand full of huge gold mining companies. Large "elite" gold mining companies aren't bad for the gold industry. This is just the way things work.
Your analogy is wrong. Once extracted and refined, the value of gold lies in the gold itself (gold atoms). On the other hand, bitcoins value depends on having a mayority of honest miners 24/7. You dont need third parties to do a transaction with gold. But to do anything with your Bitcoins you depend on miners, forever. This is the fundamental difference between Bitcoin and gold.
If bitcoin mining gets concetrated in few hands, or outsiders can overwelm the Bitcoin mining power, Bitcoin is in danger by design.
I think our paradox genuinely does not seem like a problem to most people. I debate religious people for a hobby so I'm used to it, seeing the cornerstone of human failure in action never really ceases to fascinate me.
Don't expect an answer against this theoretical flaw any soon so I'll check on this topic later on.
We have a nice saying in Holland that goes: "unable to look beyond your nose".
My second most favourite Dutch saying would be, "failing to see the forest due to the trees".
I guess we'll see what's going to happen.