Who are you to speak for all the people buying bitcoin? Of the people I know buying, many do so because they believe in the tech and disagree with modern monetary policy.
That might have been true few years back. Now people buy Bitcoin because they see headlines on Fox News and whatnot about "Bitcoin reaches new all-time high of $ XXXXX" nearly daily. I know it's a bubble when my totally non-tech relatives (the same people plagued by Ask bars) keep asking me where is the best place to buy Bitcoins or to find/recover their lost wallet.
I own some cryptocurrencies, but to be fair most people, in the world -- I think it's very fair to assume -- don't know what these are or how they work.
Do you really think the majority of purchases (as in tranfers from fiats to BTC or another) are done so with intent to pursue political and economic advancement? I mean, is it theoretically possible? Perhaps -- but do you truly believe that the majority even understand the technology at a cursory level?