The organization this query refers to might benefit from the elaboration of a statement on corporate values. Corporate values are first-order operating philosophies or principles, to be acted upon, that guide an organization's internal conduct and its relationship with the external world. But, corporate values should not be politically correct: to serve as real guidance systems, living values that spring from integrity, morality, and ethics must be internalized by personnel and reviewed at intervals to maintain relevance in changing contexts.

Here is one example of corporate values from the United States National Park Service:

• Shared Stewardship—We share a commitment to resource stewardship with the global preservation community.
• Excellence—We strive continually to learn and improve so that we may achieve the highest ideals of public service.
• Integrity—We deal honestly and fairly with the public and one another.
• Tradition—We are proud of it, we learn from it, we are not bound by it.
• Respect—We embrace each other's differences so that we may enrich the well-being of everyone.

Thanks for adding valuable comments

The key is middle management. Most of the time employees adapt their behavior to what they perceive of middle managers’ behavior and judgment.

If they feel middle managers are turning a blind eye to deviant behaviors or worse behaving in a deviant manner they will disrespect rules.

If you find a middle manager who does not behave prpoperly, fire him or her stating publicly the reason why. It will clear the air.