Especially in academia, many professors, who are wedded to particular models, go so far as to dismiss simplicity without sufficient consideration.
It was not always this way. Among the older philosophers, you can observe a strong affinity for simplicity. Figures like Pythagoras, Newton, Descartes, Archytas, and various Indian philosophers, such as Shankaracharya, strongly favored simplicity.
Even practical statesmen such as Han Fei, Lee Kuan Yew, Chanakya, and others were able to distill simple yet powerful truths from complex situations. This is central to leadership and the effective organization of human activities.
You can observe the same drive for simplicity in great engineering leaders like Rickover and Visveswaraya.
Given more time, I believe I could make a very strong case for the power of an affinity for simplicity and its correlation with greatness in any field of activity.
Simplicity is underrated (in practice).