What is the reward for putting in the presentation effort? If I get my salary if I spitball and I get my salary whether I put in effort, why bother? I don't bo

What is the reward for putting in the presentation effort? If I get my salary if I spitball and I get my salary whether I put in effort, why bother? I don't bother prepare for client support calls, mostly because I don't want to do them and want to be considered incompetent at them so I am not asked to help in the future as much. So at least for me, presentations are nothing but more work.