There's a team at my workplace that I think is almost literally making our product worse every time they check in code. They rejected a security fix I made beca

There's a team at my workplace that I think is almost literally making our product worse every time they check in code. They rejected a security fix I made because they didn't want to test it. The manager makes incomprehensible decisions and just blatantly lies about what they are doing. My entire team has a policy of just not interacting with them to avoid problems. How am I supposed to respect the management skills and decision making of execs who keep these people around?