Governments usually develop a protectionist economic policy to preserve and protect their supporters. Actually bitcoin begins to change the game developing the roll of financial instituitions providing a much better gain against them. Still being the main supporters, banks, stock exchanges, etc they are not interested that bitcoin substitute them in this roll. But sooner or later bitcoin will be aclaimed by society and these traditional corporations will try to use it in its favor obsessing its control, a hard fact to be concretized due to BTC be decentralized.