ryder cup-winning captain paul mcginley speaks highly of rory mcilroy .
world no 1 wants to be ` an iconic figure in world sport , ' said mcginley .
mcilroy 's not all about winning titles , he wants to propel the game forward .
mcilroy could be the sixth man to win the grand slam at augusta national .
he is the favourite for the masters , where his best finish there is eighth .
mcginley said mcilroy intimidates opponents , but not like tiger woods did .