As to why they did not imitate the Brahmins and the non-Brahmins the answer is two fold. In the first place, imitation was too costly. They could not afford it. The flesh of the dead cow was their principal sustenance. Without it they would starve. In the second place, carrying the dead cow had become an obligatonthough originally it was a privilege. As they could not escape carrying the. dead cow they did not mind using the flesh as food in the manner in which they were doing previously.