The best targets for this are really 'minor' talents. They can be just as strong in their areas of influence, suffering in breadth of application more than anything else.If this is a "free sample", it's more than enough. More than that requires something in return. However, I am all for pulling USA, and setting things up for brain drain. Get people hooked, and have them immigrate to get education in our universities. They'll either remain, or they'll return after spending years assimilating. Soft power
We also have a far more extensively developed paradigm for dealing in their gifts than anything earth can offer simply because we've had people researching it in an industrialized fashion.
We could get some current wizards, or ensure Journeyspeak is the English of magical everything as far as mortals are concerned.