Re: 1. Cause and effect are backward. Imperial service was actually more meritocratic than the domestic British government of that time. Look how many names of colonialists are Scottish or Irish. The former were tossed out of their land during the Highland clearances or lost influence when the Union shifted power to London. The latter were barred from high office due to their Catholic religion. But if you had talent and ambition you could go to Africa or India (and then become wealthy and ultimately join the ruling class)