I used to think that the treads actually ruin the road because it changes to contact surface on which you apply the power differential from a line (on a tire) t

I used to think that the treads actually ruin the road because it changes to contact surface on which you apply the power differential from a line (on a tire) to a rectangle(the tread), i.e. it tries to rotate a flat surface which can't be rotated, so somethings got to give. Arguably a tire wouldn't have the same problem.