I’ve yet to see a single product that isn’t related to domains existing products solve problems for. That is, I’m aware of any time in history a wholly new category emerged suddenly.

So your question seems like pure fantasy to me — like asking how we’ll slay dragons without ads. I don’t know, but I don’t think that’s a thing which actually needs doing, either.

New products within an existing category show up in catalogs, review articles, etc just fine without ads. As does your highly technical product, for which people in the relevant industry already know the information and/or are already used to narrowing their search to a few products and then requesting additional information.

Your pro-ad arguments seem to be solving problems that don’t actually exist.