This is a lot worse than it seems. Protectionism in Brazil goes further than Mindstorms and protectionism in the world goes further than Brazil.
What stupid (and heavy lobbied and bribed) politicians will never get is that protectionism is also cultural isolationism. By keeping good and inspiring technology off the gates they are actually limiting engineering creativity and imagination. They're actually stifling innovation and progress, not stimulating it.
Brazilian culture grew so much when it imported other people's culture and modified it to their own. Jazz was imported and became bossa-nova. Soccer was brought in by British workers in the railways and became "jogo bonito". Corbousier's modernist architecture was assimilated by Oscar Niemeyer and changed into Brazilian architecture. If culture was walled by protectionism, these developments would never happen. Similarly, technological development will be repressed by protectionism.
A congressman here calculated that a videogame may get taxed 273% on its original import price without shipping costs.
Too bad mindstorms are ridicously expensive here in Brazil, I am yet to put my hands in one.