Yes. You should regularly run DBCC CHECKDB on master, model and msdb. They too can become corrupted if your hardware is having a bad day.
You could argue that since tempdb is being recreated when SQL Server restartes, it is less critical. Then again:
- You may not restart SQL Server that often, and you get corruption in system tables, you will still have a problem.
- And even if corruption is only in tempdb, it is still an indication that your hardware is wonky and needs inspection/replacement.