Are we going to start quoting single phrases from policies in isolation now? For example, I can argue that WP:UNDUE also states, in the very first sentence, "as far as possible without bias."  Perhaps we can have a long debate about what "as far as possible" means next. I can also point out that strive is closely synonymous with try, which implies the possibility that one might fail under some circumstances (yet more evidence of room for common-sense). Additionally, I've already quoted from the template at the top of WP:LEAD above: "Use common sense in applying it; it will have occasional exceptions." But all this will get us nowhere. Demonstrate a way of assessing the relative importance of different aspects of the topic. And, more specifically, demonstrate that the HIV issue is more important than any other aspect and deserves to be apportioned more of the lead than any other aspect, because that's the state of affairs you are trying to defend.