I think it's rather due to the fact that like most other disciplines, the economic sciences have been further fleshed out since 1858. We no longer re-use unwash

I think it's rather due to the fact that like most other disciplines, the economic sciences have been further fleshed out since 1858. We no longer re-use unwashed surgical instruments, and we no longer subscribe to marxist ideology. No one likes Lincoln for his economic opinions.