polarized lenses will reduce glare(ie. white light bouncing off objects) by only accepting direct light. It will reduce the required dynamic range of
cameras and make skies a little bluer and not as washed out. Sometimes you don’t want this, ie. you want special reflections off objects. It’s a double edged sword.
And also there’s a difference between local contrast and global contrast. Local will increase the difference of mid-tones without changing the max,min white or black values.
Global contrast, changes the floor and ceiling values, ie, increasing,decreasing the dynamic range. You should always try to light soft enough that you don’t lose your global values then add local contrast in post. Never blow out your highlights or shadows because you’ll never get them back. Post grading is always smart. Like they always say, “get it in camera first.”
You can use curves to drag the shoulder down so it looks s-shaped. It will make the remaining pixels burn gradually to white. It’s a taste preference.