Well, I think it highly depends on the niche. My wife for instance, enjoys makeup and skincare products so she follows certain personalities that sell their own

Well, I think it highly depends on the niche. My wife for instance, enjoys makeup and skincare products so she follows certain personalities that sell their own lipstick or whatever. The most prominent examples of this that come to mind (because she brings it up to me) is Kylie Jenner and Jeffree Star. The products aren't prohibitively expensive (though I think they are incredibly overpriced and believe she'd do just fine by buying generic Target brand stuff) but she seems to be persuaded by it. I know with those examples they are selling their own products, but I'm sure there are some more Linus Tech Tips style makeup influencers that she follows that impacts her buying decisions with her disposable income.