Chochma doesn’t mean ethics and morals, and yes, the definition of altruism is a moral construct with unavoidable moral implications. The gemara itself asks how rebbe meir can learn Torah from acher, and answers that since he was a gavra rabba – a title of immense weight – he was able to “eat the fruit and discard the shell”. We cannot, or at least we can’t without risk. If people are worried about the chance of catching corona, wouldn’t they also be worried about catching apikorsus? Isn’t that worse?
The rambam didn’t invent kabel es haemes mimi sheomro; it’s chazal, and again, the rambam (nor any other rishon) never quotes Aristotle from his moral and ethical teachings. He skipped that part. He used him for what we would call science and logic.
Many, many rishonim argued with the rambams use even of that – are we to pasken like him with a shailah of such magnitude without a clear psak from achronim? Actually, the achronim say something quite different. The abarbanel writes that sof yamav, the rambam was shown kaballah and had regret about being psek with Aristotle, preferring chochmas hakabalah. The gaon famously said that the rambam was influenced by philosophy.
Who are we to go around reading whatever we want when chazal say that one who reads seforim chitzonim (which the bartenura says means books of heretics) has no place in olam haba?