Bad / Dishonest
scheme - A large-scale systematic plan or arrangement for attaining some particular object or putting a particular idea into effect, often through deceptive means
It's better to be honest and work hard, and not spend too much time devising or falling for schemes that are tempting shortcuts to making money.
hypocrisy - Behavior that is the opposite of how one actually is, being fake by pretending to be one thing, and acting in the opposite way.

The politician was guilty of hypocrisy because he promised reforms, but his real goal was to enrich himself and his friends.