[citrin_ru]

May be being a millionaire is not enough to get a non-hostile treatment from a bank but the problem is that the cost of compliance is of the same order for all customers (because reporting thresholds where exist are very low like €1K or $10K) but per-customer profit is different. This creates an incentive to disproportionately deny service to non-rich customers. This would be much less of a problem if government regulators where focused on people/entities which operate with truly large amounts of money so ordinary folks can stay under the radar and not be a burden for a bank. But for some reasons governments wants have a grip almost on everyone. So having below median wage as the main source of income doesn't not make one a low risk customer for a bank if there are other "risk" factors (like being an immigrant).