I’m not belittling them, but if they hadn’t flown first, there would have been another powered flight by someone else within 5 years. Bleriot’s Monoplane, which flew 4 years after the Wright Brother’s plane, was of a completely different, and much more modern design. The Wright Flyer was a box-kite biplane with a canard and a pusher engine. Bleriot’s plane had a tractor engine, a fuselage and tail, and a single wing. He gained little or no knowledge from the Wright’s design, and was already working on his planes when the Wright Flyer flew.
Wing warping wasn’t necessary for controlled powered flight. Modern powered hangliders do it through body shift. If a wing has dihedral, you don’t even need ailerons or wing warp. Just turn the rudder, and the plane will bank into the turn properly.
Anyway, wing warp wasn’t that great an idea. Ailerons work much better. If you look at gliders built since 1799 you’ll see that the designers knew about cambered airfoils, so it’s a very small step to controlling the lift on one wing by modifying the camber, either through warp, or ailerons, or spoilers.
Anyway, George Cayley may have been more important than the Wrights. Here are some of his contributions to flight:
A) He set down the mathematical principles of flight (i.e. lift, thrust, drag)
B) He was the first to make use of models for flying research, among them a very modern-looking glider which flew well using a single wing, a fuselage, and a tail with a rudder and elevator. He flew it in 1804.
C) He was the first to draw attention to the importance of streamlining
D) He was the first to suggest the benefits of biplanes and triplanes to get increased lift without increasing span
E) He was the first to construct and fly a man-carrying glider, in 1849, 54 years before the Wright Flyer came along.
F) He was the first to demonstrate the means by which a cambered airfoil provides lift.
G) He was the first to suggest the use of an internal combustion engine and propellor to provide thrust.
If the engines had been available, I think Cayley would have flown a powered aircraft in the mid-late 1800’s. Unfortunately, fuel oil didn’t have a low enough flash point to make a serviceable engine, so manned, powered flight had to wait.
BTW, an unmanned airplane achieved powered, sustained flight in 1857, using a steam engine. The problem was that the steam engine was too heavy to provide enough thrust to carry itself and a man.