The Fed is not one person
There are severl that fear that which is out of thier tight control
The Fed hasn’t got ‘tight control’ of much of anything, as their experience in the 1970s illustrated to their chagrin.
The ‘bond vigilantes’ beat the Fed up on a weekly basis. The bond market is much bigger than the Fed.
The Fed has influence over bank lending. They can control to some degree the amount of loanable money in the banking system. That’s one of their primary roles.