The mad thing about the result is that the Dems spent so much more money and still lost. Not that you can easily quantify the financial value of changing the algorithm on twitter to favour Trump.
Twitter, Washington Post, FaceBook, TikTok, YouTube: they all favored Trump. But YouTube may have just been unintentional as they are grossly incompetent and dont understand how their own algorithm leans into extremes.
YouTube definitely know they have an issue and don't care, or they would do something about it. Radicalising people with extreme content increases engagement which makes them money, the only thing that will make them change it is regulation (with teeth).
That is fair that a person becoming radicalized does engage more, but it also turns a lot of people away from the platform and the loss of advertisers and users on Twitter is proof of that.
Except money evidently doesn't buy it by itself. If it did Harris would have won. Effective messaging (Where is the Dem Joe Rogan? They kicked the closest thing they have out of the DNC for expressing broadly popular opinions) and playing to the base of people willing to vote for you (Dems will never get those Republican voters no matter how many immigrants they promise to stop at the border) wins elections.