The samurai were a semi-noble class of a very advanced society. The samurai were much more civilized than the Vikings did not fight to plunder to sweep everything in their path, they were fighting for a sense of loyalty to the daimyo, shogun, emperor. Their customs and education were more advancedHow does that make them Samurai?
The Andorians are a warrior / militarist culture. But they are not savages who fight for their clans, individual glory and fortune, as the Klingons do. They fight for andor and the federation in a great feeling of loyalty and honor.