I understand your perspective. It's a bit too cynical for me and I don't agree with it, but I get it.
Every business in the world operates under constraints aimed at making a profit. That doesn't preclude them from wanting to be the best at whatever it is they do. Every significant organization started off as an industry dis-rupter and had to find creative ways to compete in order to rise to the top. The Brewers are an industry dis-rupter. So yeah, profit matters and it always will.
Having said that, the Brewers do things that are not profit conducive but rather are aimed at winning. The pour millions into player development, particularly Latin America, that they don't have to. Certainly they could keep that money as profit, other teams do rather than reinvest in the product. No, this is purely a move to find ways to compete.
I would argue that the fans are the largest part of driving winning, particularly championships. Without the fans, none of it exists. If every Brewer fan stopped going to games, watching on TV and buying merch, they would become the Portland Brewers very quickly.