You must not be a hawg driver, because I’ve never seen a hawg driver act like the ass you are condoning.
Selectively raising your voice to get your point across on certain occasions can be effective, but that is different than habitual “yelling,” which if you’ve spent any time around other Services you’d know is not extremely common. It’s also just as effective in other Services (I.e. not). It really just makes you look like an ass and frankly it’s a failure to adult.
People don’t like talking to asses. That’s why they call it toxic. It’s not good for the mission if people don’t want to communicate with their leaders because they are asses. If you were a pilot you’d know that being an ass doesn’t work well in a plane, in combat, or anywhere else for that matter.
Training can tolerate some selective yelling because inducing a stress response can be beneficial when you want to help a person learn. Even in combat, a well-placed intentional yell may bring someone back to where they need to be. However, people can usually tell the difference between someone yelling to help them or the situation versus someone yelling because they’re a power-tripping overcompensating toxic ass.