Can having the wrong type of social media content cost you a sponsorship even if you're winning races?

Yes, absolutely. Alpine Stars has turned down athletes and influencers with millions of followers because their content didn't align with the brand's image. Content showing illegal activities, crashes for entertainment, political statements, or polarizing content can disqualify athletes from support. Brands have even ended long-term relationships when supported athletes posted inappropriate content. Everything posted online is permanent, even if deleted, and sponsors do thorough research before and during partnerships.