Engineering and the sciences have, to a greater degree, been spared this isolation and genetic drift because of crass commercial necessity.
Or maybe rather, engineering and the sciences, have, to a greater degree, been very differently shaped due to their different connections to commercial forces.
Critical theory invites us to step away from an idea of there being some kind of realm of pure, valid thinking/knowledge that might be corrupted/shaped by either academic structures (as Morningstar finds in critical theory), or commerce (as Morningstar finds in engineering and science), or connections to reality and instead explore how any human practice is connected to, shaped by and shaping of all those things and more.