Science has presented those of us who don't or can't purchase the more expensive species of fish with the opportunity to look down our noses a bit. Generally speaking, the lower a fish species is in the fish-eating-fish food chain, the less likely it is to contain amounts of elements and compounds harmful to humans. Omega fats have been found to provide beneficial health effects to humans. Now eaters of certain fish such as sardines that have been considered fare of lower classes, but which are both low in the food chain and rich in omega fat, can feel superior, but may instead feel inclined to benevolently counsel careless upscale consumers on nutrition and health. No variations in the viewpoints of the fish species in question have been observed.