Comment by casey2

"The man whose whole life is spent in performing a few simple operations... has no occasion to exert his understanding... He naturally loses, therefore, the habit of such exertion, and generally becomes as stupid and ignorant as it is possible for a human creature to become." - Adam Smith on overspecialization.

These products are bad because noone who works on them understands the whole system infact

"The only trades which it seems possible for a joint-stock company to carry on successfully... are those of which all the operations are capable of being reduced to what is called a Routine, or to such a Uniformity of method as admits but little or no variation." - Adam Smith

CPUs, dams, can be designed with software. Plenty of programs can be designed with software but most useful, interesting, valuable ones cannot. Plenty of programs are designed with software, or more generally a routine, and they are incomprehensible as a result, and clearly their programmers are the most stupid and ignorant people around.