Inflation is a very basic and proved tool to not only stabilize the value of a currency (you know, what a currency is supposed to be) but also to provide incentives to avoid stockpiling production potential and lower unemployment rates.
Crypto speculators might desire to exploit their first-mover advantage to speculate their way into riches without creating anything of value to a society, but that does not mean that the interests of these speculators are aligned with society's best interests.