Do you think our health, sanitation and hygenie would improve if scientists came up with a scientific way of?

Question

making flies extinct or making them evolve into a much more pleasant insect instead of being born as slithering white larvas and then into the nasty hairy black flies with blue shell skin?

Answer 1

Definitely not.

Those flies play an incredibly important role in the decomposition of animal leavings and corpses.

Without them, we would probably be literally up to our eyebrows in dead animal corpses and piles of p**p.  

Most of the health effects these flies have is due to them having walked on the piles of corpses and poo, and then tracking it onto our skin or food.  If it wasn't for the flies though, we'd simply be swimming in the ick and probably be sick all the time (until we went extinct ourselves).

The disgusting slithering white body form of the fly maggots is perfectly suited for their life in the offal and carrion, and modifications to make them cuter would probably make them less efficient, and might even cause them to spread bacteria and filth farther afield.

Answer 2

I don't think extinction of flies would help our health or sanitation. They exists because food and decaying meat is around. Flies play an important role in recycling. They can smell a dead animal four miles away. The maggots they lay quickly devour the host. If flies didn't exist, some other creature would evolve into that niche.