But as an economist you might think that complete equality in the society would mean that there were insufficient incentives for people to work, study, and take risks innovating and investing, so that at least some inequality could actually be better for everyone.
I agree with this view. This article mentioned an example of why the opposite of such would not be feasible. After receiving the stimulus check, many low income individuals simply decide to not work, thus a decrease in incentive and decrease in overall productivity of the society. This shows that some inequality can actually motivate individuals to work for their income and such benefit the society with their output.