Jerry Jones has always put his own interests before the franchise's fanbase. There was never a time when he put Dallas' fans first and himself second.
A more recent reminder:
No person or venture group is altruistic enough buying a sports franchise for simply the entertainment of other people. Even in the late 1980's, H.R. Bright set his NFL franchise's value at $140 million. Even adjusted for inflation, low nine figures remain a level of investment very few individuals in the world can dream of. Jones bought what he envisioned would be a money-making machine for himself, not a satisfaction maker for fans.
From day one, Jones has always marketed the team as a continuation of the franchise's rich championship history. That was for the benefit of his fanbase, who are the main consumers of his professional football product.
Jones has
never put fans' interests ahead of his. If he
ever had, he would have modified his management philosophy in the pursuit of better, on-the-field results. Any observer should never dismiss this fact:
Jones had already established the league's number one revenue producing vehicle in the 1990's.
He fulfilled his goal for buying the Dallas Cowboys decades ago. He has adamantly refused allowing a different management philosophy running the football team. It has always been his way or no way. If that does not convince everyone he does not care about winning partially for the sake of the franchise's fans, nothing will.