A quality gate is the best way to enforce a quality policy in your organization. It's there to answer ONE question: can I deliver my project to production today or not?
With SonarQube Connector for JIRA you will be able to get your quality gate status and conditions directly in your JIRA project tab panel.
This will help JIRA managers to make sure that code quality is good enough to deliver to production.
You can take a look at the SonarQube official documentation to know more about quality gates: