Sometimes it's just for the scentiment. For example, YouTube has had a policy since 2015 that you can't have third-party brand logos in your videos unless that brand also buys out all of YouTube's banner and in-video Ads in the video, and it couldn't be a pre-recorded ad, it had to be a sponsor spot integrated into the content. Supposedly there was no outrage and this policy stayed in place, and was just never enforced. https://youtu.be/t17PVwreKEE?t=93