All these big players ( banks, facebook) will not go down without a fight. If you look at Eastern Europe, for example, you will see that the Justice systems are torn to bits because they have become so effective that they are threatening all the corrupt officials and institutions. I'm not saying that this will happen to blockchain but there will certainly be a struggle for power. In the end blockchain will prevail but the question is if it's rise will be delayed of hampered in any way.