you can't suppose that a 4B marketcap asset can save a whole country like the greece, and they know that(those that are aware of bitcoin at least...) so it's pointless for them to adopt bitcoin, and enrich early adopters as a consequence of their buying
no one it taking bitcoin seriously for the time being
You dont need to save the whole country, you just need to save the poor people. The middle class and the rich ones will surely not starve.
If the poor people get saved (not through endless welfare and socialism) but through offering them innovation and an opportunity to earn money.
Look bitcoin has created more jobs in its existence than all governments on the world combined since then....