Lorenzo, who ended the season with seven wins to Rossi's four and five points clear, suggested it was to be expected that his compatriots would rather see him win.
"The fact that they knew what I was going for and that they are Spanish has helped me and in another race they may have tried everything to overtake," said the new champion.
"Dani did well because he could have tried a crazy overtake. We are Spanish and the title remains in Spain. If it had been in Italy and with two Italians behind Rossi then it would have been the same."
