MEAT EATING IS LINKED TO BOTH INCOME, AND CULTURE
Some religions are quite strict with regard to meat, e.g. Islam prohibits pork, Christians have fasting days, and animists are not allowed to consume totemic animals.
A person of Jewish confession should only eat kosher, i.e. meat drained of its blood and blessed by a rabbi.
The Massai have a totally different relationship to the blood of animals, men would ritually bleed a cow without killing it, and drink its blood to gain strength.