If monetary inflation was beneficial then a crypto-currency with those features would already exist. Only currency systems where there is no choice have come to the conclusion that inflation is good.
You're making an assumption that the makers of crypto-currencies intend to produce "better" economy-exchange-token systems rather than pump-and-dump systems.
I don't make any such assumption. I'm sure some cryptocurrencies were made for that exact purpose. I think that the competition in the market for currencies will bring out the best result.
If monetary inflation was beneficial then a crypto-currency with those features would already exist. Only currency systems where there is no choice have come to the conclusion that inflation is good.