Wells-Fargo did not make this decision, it's a legal fiction. An individual employee or officers of the bank made this decision. Wells/Fargo isn't being penalized, it's the individuals having accounts there who pay the price through lower returns on their savings and investments as well as rates being charged for services being increased. 
Hold the people responsible for this decision personally liable. Extend this to all the banks. 
A corporation cannot make a decision, people do and hide behind it. Until this happens, the greed, corruption and salaries that are beyond belief will only continue. 
But it help that banks help write the laws that they are supposed to operate under. Our elected officials and bankers have their hands in each other's pants. Follow the money.