ORD Controller reported departure aircraft failure to follow departure clearance resulted in a wrong turn. Controller stated that this is an unsafe ongoing issue that fails to be addressed.

Narrative

Aircraft X was issued a right turn heading of 040 with the takeoff clearance. The departure runway was 28R from the N5 intersection. After the aircraft was airborne; I noticed they were making a left turn. I immediately told them it was a right turn and they corrected the turn. There was no other issue with any other aircraft. Wrong turns are a systemic issue at ORD. At the time of this; the impact of the wrong turn was minimal. There are times when there is higher departure volume; and especially on a parallel departure runway configuration; where a wrong turn can be a much more serious issue. Recommendation - At this point; the only way anything will change is if the FAA and ORD Tower actually acknowledge that this is an issue; or if a wrong turn leads to a midair collision. Wrong turns off the departure end have been an ongoing issue for years. Any time an event gets any sort of attention; it gets swept under the rug; the impact is minimized; and the fact that there is 'no loss of separation' or that no accident occurred means that the issue is ignored until it happens again.