The ruling and civilising elite has always been Nordic.
"For thousands of years they have poured forth from their northland homes in conquering waves over Europe and many parts of Asia as well. The Aryan invaders of India were Nordics; so were the ancient Persians; while the Greeks and Romans of classic times contained much more Nordic blood, at least among the ruling classes.
Always and everywhere the Nordics have been a race of warriors, sailors, pioneers, and explorers. Unlike the Alpines, with their slow mass migrations and peaceful penetration, the Nordics have ranged far and wide, often in small numbers, but winning their way by their fierce energy and great fighting power. Conquering peoples sometimes vastly superior in numbers, the Nordics have settled down as an aristocratic ruling class, and they have usually known how to perpetuate their rule because of their high political ability. Political ability is one of the Nordics` chief gifts, which they display both in ruling others and in ruling themselves.
The Nordic is at once democratic and aristocratic. Among his own kind he is democratic. Profoundly individualistic and touchy about his personal rights, neither he nor his fellows will tolerate tyranny. None of the primitive Nordic tribes had despotic rulers, while modern constitutional government was developed by the Nordic English and has not been really successful except among peoples with a strong strain of Nordic blood.
Where the Nordic establishes himself among other races he is instinctively aristocratic. Feeling himself the ruler and the superior, he prides himself on his race and seeks to guard the purity of his blood. Throughout Europe to-day the old aristocratic class tends to be of Nordic origin. Even in countries where the Nordic element has been mainly bred out of the population what little Nordic blood remains is found chiefly concentrated in the old upper-class families."
[Racial Realities in Europe by Lothrop Stoddard]