Company skymiles vs personal

Hi, I've searched this sub, the internet, and even talked with Delta's support but cannot get a straight answer. Sorry if I missed something obvious.

My new company requires I add their company skymiles account to all Delta flights. When making a booking, there is a spot to put my personal skymiles, and then a little checkbox where I can also add the company skymiles.

So there are two skymiles numbers on the account (mine and the company's).

Two questions:

  1. Will I still get my miles and MQDs? or does my company "steal" them?
  2. Do I get any benefit from adding my company's skymiles? as in any perks? or is it purely for their benefit?

Sorry again if I missed similar posts. I was blown away that the support rep couldn't help me answer this. They told me they weren't familiar with company skymiles accounts, and I didn't want to wait on hold for another hour to get another rep.