In fact, this has resulted in burdens for smaller and medium-sized banks, some of which are undesirable and even harmful, because small institutions cannot utilise the economies of scale that large banks profit from when adhering to the rules. The regulatory framework has already partially taken this into account with gradations which vary according to an institution's size and business model.
Yet necessary measures such as the procurement of new IT systems or the 2/4  BIS central bankers' speeches  recruitment of staff who ensure that the rules are complied with are still leading to high fixed costs, which represent a large burden to smaller institutions. When regulation makes size an advantage, this can clash with the goal of creating a stable financial system.