Not just ARCO (very few left now) but mostly old Amoco managers. And one of the main reasons for it is because those old 'cowboys' in the pipeline field are having their feet held to the fire to obey Health, Security, Safety and Environmental (HSSE) rules that they never even knew existed. (or acted like it anyway)
Well, down here, the reason is more or less the opposite, it is too much emphasis on bottom line, and bully tactics.