Please elaborate on how watching a commercial or receiving a pleasantry from a cashier is anything remotely like a company secretly influencing the results of a search for knowledge.
If you want an un-influenced "search for knowledge", you are well within your rights to pursue that independently using your own model and software, but because you are accessing software developed by another company, these rights do not apply.
Don’t like it? find another platform. Pretending this is censorship and not commerce is wrongheaded.
So many people disagree on what censorship is that I prefer to be more precise when possible.