Would the bank be treating someone differently? Just because someone has some dollars does not mean they are credit worthy, or can be written to different underwriting standards, or have different expectations on repayment. The biggest potential for differences (IMHO) would be on exceptions in decisions and pricing, and in collections. John Doe goes past due 2 months and you pop the car. Harvey Wallbanger III goes past due and everyone turns an eye because he's important, and the PB officers don't want to offend a great customer.
Like Randy mentioned, there are many posts.
Integrity. With it, nothing else matters. Without it, nothing else matters.