Even if they could be told that they are not going to be compensated for their losses, the costs will be passed on to other customers in the form of higher interest rates, hidden costs and garbage fees for other loans.
They already do that to a huge extent, actually committing criminal fraud, get caught have to pay a bit of their profits back to the government and do it over again as soon as the heat is off.
Wells Fargo was just the latest one to get caught totally defrauding their customers for bogus fees and changes.
Right after the banks got their huge bailouts back in the 2008 time frame, they hiked fees on the same taxpayers that had to bail them out, about 10x on average, for the amount they reported getting in fees before the 2008 and then the amount they got on fees and charges yearly in later years.
Again this can be fixed, you simply tell the banks what will and will not be allowed and have strict regulation with teeth in it.
The banks rely on the guns and boots of the government to enforce their will, politicians get scared enough of being voted out of office, laws change.
Just like when the big banks bribe the politicians to change the law to let them screw over the people more.
For example Hillary, she was all against the banks changing credit card bankruptcy laws to screw the common folks over more, while letting the big corporations use "bankruptcy" as a I don't pay my bills but please keep giving me goods and services payment option.
Then she got a large campaign contribution for her senate campaign and all of the sudden her position "evolved" and she voted for what the big banks wanted.
The people have all the power but have been convinced the global banking elite have all the power.
No government guns and boots to backup the bankers, they have much less power.
Banking, much like much of corporate America and wall street runs on a system of privatizing the profits and socializing the losses as well as bribing the government to tilt the laws to be good for the big guys and bad for the poor guys.
Same thing with criminal laws, the bank accuses you of defrauding them, they want you thrown in jail and all kinds of penalties paid to them.
Banks or corporations are found to have committed felonies, fraud and forgery as well as defrauding their customers, well you couldn't send anyone to jail for that, so let's just work out a nice little payment to the government and admit no wrong and behave for a bit until the heat is off. Most of the time that payment is actually a lot less than their profits. And strangely none of that ever seems to be refunded to the customers in any big way or the harm done to the customers fully resolved for the customers.
The solution is to have very strict regulation of what every fees / loan and other financial structure can be and tell the banks that's it you can make reasonable profits based off playing by the rules, do a good job make more in a fair manner, but no more ripping everyone off because you want to get your billions in profits faster.