You may have a point here but I sort of not seeing that to happen (at least for this technology in particular). Last time I checked, there were 600+ Alt coins IIRC and all have so far failed to do what their first intended to do (to beat BTCitcoin and eventually replace it as the leading crypto currency) and many will surely follow the same path with the objection of doing the same but it's like on one side it's BTCitcoin alone and on the other side, all the rest of alt coins and yet BTCitcoin prevail. It may not be perfect and surely it has it's flaws but it's a system that constantly get's improved over time and it keeps on increasing it's distance between other coins and it won't stop even when it's looking the other way at the moment.
Once a lot of these bigger entities, like banks and financial institutions starts getting involved, things will change. The guys at Netscape might have
thought so at the time too, but then bigger players got involved and it got dirty very quickly. There are a lot of things riding on the success of this
experiment, but we have to realize that these companies have a lot of funding and influence with governments. The ETH and Ripples of the world,
might just get the backing they need from these companies and we will have much stronger competition. The only thing they cannot claim, is that
they were the first and original decentralized digital phenomenon. Bitcoin will boldly make that claim and always be remembered for that...