alt Hacker Newsessentially every YouTuber I've watched who discussed their financials said that their sponsorships brought in several times more money than all forms of YouTube money.
which is a very niche slice, and I have no idea how representative it is in aggregate. but sponsorships happen because they pay well enough to annoy every viewer, not just ones that aren't using the better-paying Premium - they generally are not cheap, to say the least.
Linus Tech Tips disclosed their finances: https://www.reddit.com/r/LinusTechTips/comments/1jjplow/ltt_... - and their sponsorships are less than the YT ads income.
If you look at Premium, it's about 100x more lucrative than regular views. So I'm pretty sure I'm providing more money to creators than the skipped ads.