A proton has spin and magnetic moment just like an electron. Why then its effect is neglected in magnetism of materials?

A comparison of a proton’s and an electron’s spinning is made by comparing their magnetic dipole moment, which is given as

μ_p = eh/4πm_p

μ_e = eh/4πm_e

μp/μe = me/mp = 1/1837 >> 1

μp << μe