The IACP =/= law enforcement. The IACP is an organization for politicians.
The more you know!
And the politicians are the ones who select their chief of police according to their own ideas about what law and order should be.
I live in the county, where the sheriff is an elected office. Although not a perfect system, at least the average citizen has a little more say so about who is in charge of enforcing the laws we are to live under.