“…The social conditions of the citizens were comparable to those in Sumeria and superior to the contemporary Babylonians and Egyptians.”
“…neither sculptures of rulers nor depictions of battles and military campaigns have been found, evidence pointing in either direction is not conclusive.”
The Indus Valley Civilization is known for its highly sophisticated and egalitarian urban development that included multiple story houses designed to take advantage of air currents to create natural ventilation.
“Many houses had wells and bathrooms as well as an elaborate underground drainage system.”
Their society was known for being peaceful. From my perspective, a society that is peaceful, egalitarian, and lacking evidence of rulers points to very limited elitism and the likelihood of statelessness.