is it stupid to think that they should make the aperture blades on lenses form a rectangle instead of a circle, because sensors are rectangle, as it would optimize the usage of the amt. of light being let in? HUH?!

is it stupid to think that they should make the aperture blades on lenses form a rectangle instead of a circle, because sensors are rectangle, as it would optimize the usage of the amt. of light being let in? HUH?!