Question: Why did humans evolve with a protruding nose?

Answer: The answer is simple.
They did NOT EVOLVE with a protruding nose because evolution (macro) is nothing but a popular MTYH. It is Santa Claus or the tooth fairy.
It has zero credible scientific evidence supporting it.

Your question falsely infers that evolution (macro) is true and real - it is neither.
Macro evolution is a popular myth, a fairy tale, devoid of credible scientific evidence. Recent discoveries in genetics shows that it is NOT possible.
(See book Signature in the Cell by Stephen Meyer.)

The evolution battle is often MISrepresented as science against religion – this is baloney!
The real battle is between good science and Darwinism.
When Darwinian/Macro evolution is scrutinised using the scientific method, it crumbles.
The scientific method demands: observation, measurement, repeatability. Darwinian/Macro evolution has none of these, all it has is circumstantial evidence which is open to interpretation. Ask yourself: What evidence is there that our great …. Great grandfather was a bacterium?

Dr John Sanford (Geneticist and inventor of the Gene Gun) said :
“The bottom line
is that the primary axiom [of Darwinian/Macro evolution]
is categorically false,
you can't create information with misspellings,
not even if you use natural selection.”
There is significant dissent from Darwinism. For proof of the dissent to go http://www.dissentfromdarwin.org/ and download the list of brave scientists who are willing to publicly declare their dissent from Darwinian/Macro evolution. Micro Evolution is observable science, Darwinian/Macro evolution is a fairy-tale supported only by propaganda.