standard capitalization is Important because it shows people you are willing to comply with social norms and expectations. how do you expect the big brass to give you a promotion when you type in lowercase? you have outed yourself as a Deviant and cannot be trusted.
luckily i know how to use the "proper" capitalization scheme if i need to solicit the approval of someone important. but more and more lately i find myself in the reverse situation, where someone wants to be approved by me