"a credit card company which records a higher rate of interest ends up getting a bigger slice of the pie" That's fascinating. So there's a clear financial inc

"a credit card company which records a higher rate of interest ends up getting a bigger slice of the pie" That's fascinating. So there's a clear financial incentive to drive the rates up quickly as soon as there's a sign of trouble Would it make sense to remove that incentive? For example, slice the pie based on principal rather than principal+interest? Or to add in some consistent rate of interest across all creditors?