Just guessing, would another factor be that these are highly capitalized, highly leveraged, highly competitive industries, so a 10% increase in profits can mult

Just guessing, would another factor be that these are highly capitalized, highly leveraged, highly competitive industries, so a 10% increase in profits can multiply and where anything that increases costs must avoided at all costs because your competitors are lowering their cost constantly. Edit: I think we can see huge companies tightly locked into their paradigm because it involves so much capital and so many connections to suppliers etc.