...kind of, but not really.

What I'm actually saying is that slavery is a constant. From time immemorial to the industrial revolution, human slavery was a fact of nature. The only way for people to have a decent standard of living was to have slaves that did work for them. Athens & Sparta both relied on slavery to function. Likewise Rome. In the Feudal model, serfdom was close enough that it might as well have been slavery.

The only reason we ever moved on is that we started enslaving carbon instead of people. Steam engines, combustion, coal, mills of all kinds became common, and then (and only then) the jobs that previously required a human slave were replaced with mechanical slaves. That's why slavery didn't end until the industrial revolution was making strides. It's why Britain banned slavery before much of the rest of the world: they industrialized earlier. It's why slavery still exists in the pre-industrialized world.

The people with power and wealth and privilege will never choose to forego those things, and those who put their ethics ahead of those forms of capital will lose out to those who prioritize capital over ethics. We've seen this time and again, even in modern day societies. Now, we're moving from enslaving carbon to enslaving electrons (electricity).

The reason "putting slaves out of a job" was a consideration is that the Greeks specifically and intentionally didn't move themselves into the industrial revolution because then the (fairly populous) slave class would not be occupied in their jobs, and the unfairness was feared to result in a Marxist-like revolution.

If, somehow, the Wakandan Royal Family specifically decided to solve that problem by raising slaves to equal footing with the rest of their citizens, the situation the Greeks feared would be avoided, and they'd still reap the benefits of the technological advancement.

EDIT: TL;DR: No, technological development allows for society to exist without slavery, and concern about the transition from slavery to technology can present a social pressure delaying technological advancement.