Have you ever read this article?

Muñoz, Lucio, 2013.  Utilitarianism, Raw Liberalism, Moral Liberalism, and True Sustainability: Basic Paradigm Foundations, Changing Assumptions, and the Evolution of Development Paradigms, In: The Mother Pelican Journal, Vol. 9, No. 1, January, Ed. Luis Gutierrez, PhD, USA.

https://www.researchgate.net/publication/281277111_Utilitarianism_Raw_Liberalism_Moral_Liberalism_and_True_Sustainability_Basic_Paradigm_Foundations_Changing_Assumptions_and_the_Evolution_of_Development_Paradigms