If we achieve the second, we can have both.  But if we only achieve the first, we likely cannot have the second (and wouldn't find it to be a substantial improvement over the fiat systems we have now, even if).

The reason for this is that if Bitcoin is secure and trustworthy, trustless decenteralized micropayment facilities can be built on top of it and extend Bitcoin's transaction security with arbritary speed or scale.  But if the system is fragle and underminable by attackers (government or otherwise) then it won't be robust enough to underpin these things.

(and things like micropayment channels were't my invention, they were recommended by the system's creator-- thats part of why Bitcoin has smart contracts to begin with.)