Simple, cooperation have copyright monopoly spend more corruption money for longer time than companies use patent. In US, when country first have copyright and patent law, both 14 years long.
Many people in technology company engineers/scientists/mathematicians (very smart people) know creativity and innovation need strong, big public domain, let them build on work if other people, and develop new technology is hard. Patents slow develop technology and invention (and research show it, one example: Industrialization Without National Patents: The Netherlands, 1869-1912; Switzerland, 1850-1907). Long patent slow technology longer and increase cost, waste resource. Many industry create patent pools for sharing patents help prevent this problem. Some company even allow any person use patent like Tesla.
Develop characters, story, book, music, etc, is easy (good quality stuff people like is hard and luck), compare with research develop new technology. People in corporation entertainment industry: actors, musicians, artists, writers not understand how they use other people stuff and build on them. Entertainment corporation think they get more money from long monopoly (corporate welfare) and let them keep competition lower (and slow their industrys’ development). And their actors, musicians, artists, writers get no benefit from corporation's copyright. I never hear about copyright pool or company allow any person use their copyright.
Research show copyright is too long:
Productivity Commission 2016, Intellectual Property Arrangements, Inquiry Report No. 78, Canberra.
and cause creativity much harm and cheat every person:
Theft: A History Of [Western] Music