dishonest and corrupt
venal - corrupt
If a person is ‘venal’, they are prepared to do dishonourable and immoral things in exchange for money. Typically, this word is used in relation to a person with some form of power and influence which they are willing to abuse or leverage for monetary gain, which is why it’s often associated with politics or law enforcement.
Sarah believes that our venal politicians have sold the country out to big corporations.
I’m not sure I would trust Adam in a position of power. He is venally self-interested.
The venality of that one police commissioner has undermined and shamed the entire department.