Like most F1 winners, Senna also had a shady side in the sports, despite his raw talent. This is a necessary requirement to stay in F1. For example, we now know

Like most F1 winners, Senna also had a shady side in the sports, despite his raw talent. This is a necessary requirement to stay in F1. For example, we now know that he had agreements with Tobacco companies that meant we wouldn't be challenged by any colleague (would be #1 driver in the Team) [1]. He also devised agreements with Honda to have a leg over Proust (as stated in the article). We know some of this information thanks to the opening of Tobacco companies files', which describe how they spent money in the 80s, and how they structured contracts with leading drivers like Senna. https://www1.folha.uol.com.br/internacional/en/sports/2013/07/1309436-ayrton-senna-demanded-in-written-to-be-lotuss-no-1-driver-shows-1987-contract.shtml https://www1.folha.uol.com.br/internacional/en/sports/2013/0...