In practice there is the bureaucratic state ratchet. Everything that favors their policies is taken as gospel on the whimsiest of the evidence. "My aunt's gardner third cousin works in an ER, they are seeing mountains of children in ICUs". Everything counter their policies must be proven via large RCTs. Regulatory capture functions in the same way, creating a sea of red tape that somehow large incumbents are not subject to, but have significant relative costs for smaller upstarts.