That rather depends on the job. Punctuality = productivity for many jobs, especially those in manufacturing, food service, agriculture, education, hospitality, transportation, security, etc. In the real world certain things have to be done on set schedules and anyone who can't reliably show up on time is worse than useless to those employers.

And I don't do "many jobs", I do one that aligns with my strengths, but thanks for trying to label people with disorders as "useless".

Just fuck off, mate. You're clearly writing with an agenda to push your preconceptions, apparently none of which include first-hand experience of living with a disorder.