Bitcoin is a revolution currency but bitcoin is a fairly inefficient payment network. The latter is a perfectly fine consequence of the former. If people turn this on its head and try to market bitcoin as a payment rail where the currency is an unfortunate requirement, it would be immediately out competed in the market by better payment systems which are fundamentally more scalable than the decentralized Bitcoin system or which don't require costly and unpredictable currency conversion.
Source: https://www.reddit.com/r/btc/comments/57zhd2/another_ridiculous_claim_from_lukejr_in_the/d8wb4hl