I would say that these wet-noodle "sanctions" are meaningless, but that isn't quite accurate. What they mean is this: The US and the "world community" can now proudly pat themselves on the back, content that they have
done something to put Iran in its proper place.
And when it becomes too obvious to ignore that Tehran has not been hobbled, and is charging full speed ahead...well, as another poster suggested, we can simply pass another resolution.