Karl Marx and Keynes were also economists... That is a broad scientific/philosphical field we are talking about. But there are many opportunists and demagogues in that field.
I used to work in science in hydrology and did read a lot of papers from macroeconomists (they use similar apporaches). There are defintly serious scientists in macroecomics. Tbf, I have my doubts when it comes to business economics.
I am a little tired of the idea that "tech" is something extraordinary. Capitalists in a capitalist society will do all evil to fulfill their goal, t3ch or no tech. You could use the same sentence in everything in this society. Even: "... and how green energy always serves the ruling class."
I agree, this needed more layers.