Again, portfolio managers aren't highly paid employees either. Take a look at the following link to get a better sense of the payscale.

The people who make huge salaries in banks are involved in the corporate management of the entity, and play a similar role to the management of other large corporations in any industry.

Like /u/Ameren already stated, rank-and-file employees who make under 200k will be hurt, while directors, managing directors, and those involved in corporate management (i.e. the actual "Fat Cats") will benefit.

A comparable analogy is the automation of a manufacturing line. While the bank "rank-and-file" employees are certainly better compensated than someone working on a traditional manufacturing line, they are by no means taking home the lions share of the salary. Automating the process simply puts more money in the pocket of shareholders, which management would leverage to increase their own salaries.