The UX designer’s responsibility to the public and ethical behaviour guidelines in companies

I read an excerpt from AIGA's publication on design's responsibility to the public:

The designer’s responsibility to the public

A professional designer shall avoid projects that will result in harm to the public.

A professional designer shall communicate the truth in all situations and at all times; his or her work shall not make false claims nor knowingly misinform. A professional designer shall represent messages in a clear manner in all forms of communication design and avoid false, misleading and deceptive promotion. A professional designer shall respect the dignity of all audiences and shall value individual differences even as they avoid depicting or stereotyping people or groups of people in a negative or dehumanizing way. A professional designer shall strive to be sensitive to cultural values and beliefs and engages in fair and balanced communication design that fosters and encourages mutual understanding.

and also

The designer’s responsibility to society and the environment

A professional designer, while engaged in the practice or instruction of design, shall not knowingly do or fail to do anything that constitutes a deliberate or reckless disregard for the health and safety of the communities in which he or she lives and practices or the privacy of the individuals and businesses therein. A professional designer shall take a responsible role in the visual portrayal of people, the consumption of natural resources, and the protection of animals and the environment.

A professional designer shall not knowingly accept instructions from a client or employer that involve infringement of another person’s or group’s human rights or property rights without permission of such other person or group, or consciously act in any manner involving any such infringement.

A professional designer shall not knowingly make use of goods or services offered by manufacturers, suppliers or contractors that are accompanied by an obligation that is substantively detrimental to the best interests of his or her client, society or the environment.

A professional designer shall refuse to engage in or countenance discrimination on the basis of race, sex, age, religion, national origin, sexual orientation or disability.

A professional designer shall strive to understand and support the principles of free speech, freedom of assembly and access to an open marketplace of ideas, and shall act accordingly.

To me it seems to be very applicable to everything that a user designer would do as part of their job, yet I have often seen the pressures of time, budget and manager expectations cause UX designers to stray from this type of behaviour.

My question is, what is the reason for companies that work with and hire UX designers not making these types of expectations more public and supporting them when engaging with UX professionals?