ranking of cryptocurrencies becomes outdated in my oppinion, its quite easy to create a currency which has a higher marketcap than bitcoin, but a corrupt sect arround the indexes prevents listening of those.
with the end of national banking cartels a time called "coins of style" will come, in this it will be more about a cryptocurrency and about its management and much less about a pretended selffullfilling ranking.
this could then also help prevent to get the market divided into new marketmovements. that want to free themselves from attention monopolies of established top 10 coins.
etc.
regards
This is not going to change besides you can only deceive the really dumb investors because another very important metric is volume, if a coin supposedly has a bigger market cap than bitcoin but this was created in an artificial way then this will show in the volume with a volume that is very low or almost non existent compared to bitcoin, so while the ranking by market cap is flawed it is the best system we have.