What is the point of creating bitcoin? Like this would make banks to bankrupt. I don't know but maybe It is not very logical to be true at least from the first look maybe there is something else deeper...
But why would they make bitcoin?
Bitcoin is against the government influence in the economy.
idea1A honeypot to test security capabilities of other nations. And what more cunning way than to have to expend zero$ on bating the trap. So maybe it's to force a hand show (of exotic systems) in the global geopolitical poker game.
Highly unlikely but might make a mediocre/poor novel.
idea2Slightly more likely:
Maybe to beta-test a new cash system. In the future (when the beta test/development was complete) It would be easy for the government to hijack miners, gov has very deep pockets, it would only take the majority of miners to be overwhelmed by greed and all start mining .gov coin for the coin and the nice% fiat bonus on top.
And of course big investors would convert their BTC into GOV, BTC might become the new DOGE, such wow!
The existing fiat petrodollar IS coming to an end, eventually the game WILL be reset to some asset backed system (ala Bretton Woods) and played all over again, would be sweet for .gov (banks) to not have to dip into their gold if they can just grow a free POW network and then use that.
I admit, it's a crazy speculation, but the chances of it being so are >0.
It would be against their interest to create a decentralised currency, agencies like the CIA/FBI etc aren't likely to give away control of the global finance system.
Control can always be re-established with deep pockets, you really think miners are not corruptable? Their all on GHash.io because they're spooked by variance, what do you think they would do if their mining rewards were increased with fiat subsidy on top?