I would still align the car. The Caster and Camber most likely is not adjustable, unless you have some aftermarket adjustable mounts. However the Toe-in And Toe-out is adjustable. and when you lower the car the control arms do ride higher in the body, while the tie rods and steering rack are fixed to the chassis. This would give you more toe-in after you lower. Which will effect tire wear, and cause the car to dart left or right under hard braking.
also when you get an alignment ask for a before and after computer printout, and keep that with your records. That way you will always know if that "wack" on the curb bent something or not.