I always thought some innovations in F1 are going back into the consumer market. So it would make sense to push for emission efficiency on the engineering side,

I always thought some innovations in F1 are going back into the consumer market. So it would make sense to push for emission efficiency on the engineering side, regardless of the emissions due to the whole event logistics. With your horse analogy, imagine mixing in the champion's genes back into work horses. Probably a net win.