As someone who works in the power utility industry - an industry that has slowly moved from monolithic, often publicly-owned monopolies to a competitive market where lots of functions are contracted out to service providers - I feel that a lot of this is symptomatic of that process.
In the 'old days' when we built lots of large infrastructure projects like the New York subway, various energy megaprojects, the interstate highway system, etc. nearly all technical functions were done in-house at the government or quasi-government agency responsible.
Now we have become 'leaner' and pared down many government agencies to project management only (sometimes just business management - projects is contracted out too), but it's not that easy to manage construction of a subway or a 500 kV transmission line if you don't actually have the base of relevant knowledge internally. Suddenly you have 25-year-olds fresh of out of engineering school being christened 'Senior Project Manager' and put in charge of a large, very complex technical project when 40 years ago, they would have been doing basic design and learning their trade as an engineer under the direction of a phalanx of senior engineers. Then we pat ourselves on the back for 'saving' loads of money by reducing headcount in the public sector when actual total cost of ownership has escalated.
The people actually doing the nuts-and-bolts engineering and construction work have no ownership in the project because the second that contractual completion is declared it's off to the next one.
Right now I am working for a power company that refuses to hire its own project or commissioning engineers, instead contracting management, oversight and quality control of its construction projects to a litany of 3rd parties. Unsurprisingly, it means very few if any people in our company have the expertise to understand what's going on when a project is off the rails. The result is endless delays while senior management wrings their hands and brings in yet more consultants to manage the other consultants.