The Body Shop was fairly vocal about animal testing and Ben and Jerrys was famous for their political messages on their products and that was in the 80s. And Levi Strauss and their LGBTQ+ support.

If you were not aware of it, it is not because it wasn't happening. Historically, excepting media companies, left leaning companies have always been outspoken about this while right leaning ones believed in the idea of focusing on business and avoiding overt political messaging.

So companies like Exxon were not broadcasting their views but were still lobbying government directly to change the laws in a way that benefit them (see deregulation).