Not even for other humans, and not just because we can't or won't foot the bill for more education and medication, but also because encouraging relatively primitive tribes to abandon their traditions and join the modern world is widely seen as unethical.
I see no issues with telling tribes or ancient cultures or fledgling species if their beliefs about reality are incorrect. Otherwise those faulty beliefs could lead the species to extinction.
There's education and then there's coercion. The Amish know that technology and modern society exist, and they even participate some for work, but they don't bring it back home, and they haven't altered their way of life.
Coercion is like the Indian boarding school programs in the Pacific Northwest. Taking Indian children away from their parents and beating them if they spoke their native languages, with the goal of wiping out the culture and forcing assimilation.
I'm cool with the Amish method but not the boarding schools.
I'm okay with not coercing someone into something. As long as it's a choice, I see no harm in that. Although ultimately we need to make sure that people are actually educated enough to make an informed choice, and aren't instead so steeped in their incorrect views of reality that they can't make any progress...
What I'm saying can definitely be abused or misinterpreted if someone wants to justify atrocities, but that's their negative interpretation and their choice. The positive interpretation here would be that I'd prefer a choice for anyone who wants to be Amish, as long as being Amish doesn't mean that you're completely trapped in that society if you're born into it. Some ideologies trap the mind.
I would argue that it's not backwards and that your summary is reductive and way too simplistic to be true, but I didn't expand on my view much either to be fair. In general, ancient cultures on earth would have almost always wanted to wipe out opposing cultures, but one side tended to have better weapons. In this case, if the increased moral character of our species over time is any indication then it's possible to become a space-fairing species that just helps others.
