I'm still subject to influence, because I have eyes, but it's mostly negatively, advertising is a cheap trick void of information to me. I can't buy something because a handsome male pretended to use it in a video.
Even those with informations are often lying to put a spin on their product. Health products with a new molecule. Green vehicles. etc
Plus if you know a bit about production you know brands are often using the same materials with a few superficially differenciating details; so in the end.. same product.
I still have a technical mind, and it's my main mode of functionning. Influence can still be there but I'd bet 10$ it's barely significant.
I don't really understand your point but I'm not educated in the subject either so ..
Since it is inconsequential to you, you don't care or notice the impact.
Early on I was fond of both brands, but later, if you offered pepsi half the price I'd still pick out a can of coke.
Now I don't drink anything but water so ..