You make it sound like your decadences cost little ("10 percent externality") and give you lots of happiness, when it's the other way around -- things like eating cattle, fish -- things like driving -- have huge environmental costs and probably don't make you that much happier or better off.
It doesn't say whether it's a corporate policy, but it is in the first line of the article.
> The kerfuffle started when word spread that the police were repeatedly evicting elderly Korean patrons from a McDonald’s in Queens. The Koreans have been milking their stays over $1.09 coffees, violating the restaurant’s 20-minute dining limit.
Addressing both you and the parent, I think it's more that bias implies a resistance to any other perspective. So it's bad after all, but not because it's wrong per se, but because the biased person isn't open considering to whether it's right or wrong in the first place.