A, because of stuff like the gap of the gods.
By eliminating competition to control prices
Umm here you go... they had a problem with it because ...
It showed how terrible working conditions were for the immigrants working in the industry. which is good because it opened the eyes of the public as to what was going on in the meat packing plants which was utterly disgusting and thus forcing the meat packaging companies to start having better working conditions and have better and much more sanitary ways of packing meat