The 737 MAX and all the issues with the 787 isn't what happens when engineers are in charge, it's what happens at the end of a long line of non-technical people saying "well we can just do ______ right?" Cutting corners and working on influence rather than excellence.
Article detailing the debacle with the 787. From which zero was learned.
https://www.forbes.com/sites/stevedenning/2013/01/17/the-boe...
In 2001 there was an engineer that carefully analyzed the path Boeing was taking and detailed why it would cause nothing but increased risks and costs. A bunch of business guys outsourcing everything and not understanding why they don't have a working plane underneath all the contract language.
http://seattletimes.nwsource.com/ABPub/2011/02/04/2014130646...
They had a goose laying golden eggs and they killed it to save the money on feeding it this quarter.