Many times it's not the "first" to accomplish some thing, but the person or persons who are the first to actually do some thing practical with that accomplishment.
Agreed. It also helps to demonstrate the difference between the "Great Man" and the "Course of Events" concepts of History.
The Wrights were relevant ONLY to the "Course of Events" concept because, had they NOT done what they did when they did it, someone ELSE would have and probably roughly around the same time-frame. This is different than the presence of an Abraham Lincoln or Winston Churchill or even a Hitler or Lee Harvey Oswald, whose contributions for good and ill changed dramatically the course of events and things would have been vastly different had others been in their place or had they not taken the actions they chose. The "Great Man" concept of History doesn't use the term in a value judgment sense but in terms of impact. Thus even Hitler is a "Great Man" of History.
The Wrights are NOT. Someone else would have done what they did and probably within months if not weeks. I guess in a sense you could consider them more Celebrities of History Happenings instead of Architects of Events.