A light is a light. A $4 dollar light is better than no light. Don't let these snobs bother you.
That's anti-shoemaker, why do you dislike cobblers?
Yes potentially a light is better than not a light, a roof is better than not a roof. That is not a magical miracle revelation. However a light is not a light, otherwise the idea of lux and lumens wouldn't exist and we wouldn't have different lights from different manufacturers.