getting to a point when engineers truly help managing leaks requires sharing business context and involving them on early stages of ideas. That's quite a lot of work to get to this point - from engineers, PO, Business Analyst and whoever is involved in the project.
Funny story - some time ago our client said that they regret we (engineering team, BA) didn't stop them from expanding feature scope as that, as could be foreseen, made building the feature longer. We were still more of a "features factory" so that was surprising for us, especially that there were no technical risks with the additional scope. But seems like they want us to take bigger role in product development.