Not only is it a social construct, but the concept of money took thousands of years to evolve, with fits and starts, to what it is today. No matter what, some new technology isn't going to just show up all of a sudden and completely revolutionize what is an intrinsic component of human civilization. To think otherwise is to be taken in by scammers.
I know that current money systems have flaws and are manipulated by the elites. Crypto won't end up being any different in that regard, however. Inflation is a tactic utilized within the current flawed system to move wealth to the top without your bank balance displaying the change. Cryptos will end up having their own flaws to be exploited.
I think you're underestimating the impact of a durable and formal consensus mechanism that can be run by machines and can operate efficiently at a global scale by utilising telecommunication networks. This is orders of magnitude more efficient than traditional governing structures and will displace several core industries over the next few decades in my opinion.
I know that current money systems have flaws and are manipulated by the elites. Crypto won't end up being any different in that regard, however. Inflation is a tactic utilized within the current flawed system to move wealth to the top without your bank balance displaying the change. Cryptos will end up having their own flaws to be exploited.