Should Facebook be held ethically liable for its biased dwelling advertisements

1) Should Facebook be held ethically liable for its biased dwelling advertisements? Why?
2) Identify procedures that help Facebook prevent data bias, ensure data quality and improve its ethical responsibility towards its users. What safeguards should Facebook have in place to maintain the ethical integrity of its AI driven business model?
3) Do you think Facebook must have strict liability? Meaning that all Facebook agents, employees, successors, and all other persons in active concert or participation with it, have participated in discriminating because of race, color, religion, sex, familial status, national origin or disability in any aspect of the sale, rental, use, marketing, or advertising of dwellings and related services must be held liable? Or we should only hold Facebook liable based on theory of negligence?