Of course not.
It is not legal to use your power in one market to gain an upper hand in another different market.
* $100/year for the developer account. You may think this is nothing for a bank, and you may be right, but it's still $100 more than it should be.
* MacBooks for every developer that should be able to work on the mobile app and every QA person that should be able to test the app on an emulator, even if they already have a windows/linux laptop. The Apple devtools only run on macos. There is no choice. If the org was not already running MacBooks they will be forced to do so now, and invest in everything that comes with it.
What's your point here? AFAIK, there aren't any important government apps or bank apps that are exclusive to the iPhone, nor is there any pressure Apple is putting on banks or governments to be exclusive to them.
It sounds like you made a completely unjustifiable leap from "because of the popularity of the iPhone, governments and banks need to make sure they have iPhone apps (because it's discriminatory and irresponsible of basic services like these not to support a widely-used computing platform)" to "Apple is forcing governments and banks to exclusively support iPhone".
Will they? Probably not because people with Apple devices tend to spend more money.