Meetings (or at least, Agile Backlog Refinement meetings) are more like.. The leaders who have been thinking about the central issues of the backlog for days, just want to disseminate their decisions to the group. My "bright ideas for optimization" just get in the way. It annoys them when I force them to interrupt their flow to address my thought.
The best way to spend time in these meetings, given my goal of advancing in the workplace, is to build my empathic listening skill.
It was also bad that I talked over the leader in a rush to get my thought in. He was waiting for 25 minutes while me and others were gabbing away about less important issues - bit stressful for him.
Finally, the scrum master uses the meeting time to go through the backlog one by one and edit the Jira postings, so should just let her get to that.