I agree with what Back said here:
At G20, sitting next to the president of the Dutch central bank, Back said he believed the blockchain would be another initiative for an open network, and said financial institutions no longer benefit from technology because it would mean that international transfers would not need intermediary banks with questionable credit.
There is nothing to rely on such institution if there are far more better than it, and seems useful.
Anyway, with what the OP said there is nothing above bitcoin not because it sits at the top of the market but because it proves way back then until now that it is still a good investment. Alts are just created out on hard fork to fill a certain purpose which bitcoin don't have. Thus, it makes quite a difference with bitcoin but the thing is Bitcoin's been around long enough now where people are more familiar with, that even though huge names introduced their whatever coin it is people just look at it, and still make the decision to go with bitcoin.