Bueracracies and overregulation are essentially alternatives to fiefdoms by constraining abusable levels of discretion. Fiefdoms lead to outright open corruption which make the readilly lobbied look like choir boys in comparison. The stereotypical "third world levels of corruption" situations where secured loyalty to the regime matters more than competence.

It is yet another tiresome situation of "sucks but we don't really have anything better". We can and should attempt to streamline them but that is nontrivial, especially politically.