you should care if a CEO is making $20M a year while we the taxpayer are subsidizing his employee's paycheck. Certaily you should care.
That is no different than saying if left to the shareholders they would say "screw the environment" and start dumping their garbage into a lake, much cheaper than paying for proper disposal and so in their best interest; but we the taxpayer through the government won't allow them to just do whatever is in their best interest.
We aren't subsidizing their paycheck because of their employer not paying them enough....we are subsidizing them because they have, for some reason, not been able to secure enough money for themsleves...so now must turn to government charity....
It is not the employers job to take care of every aspect of an employee's life.....they have a job that needs to be done, they offer a wage, and someone can take the job or not.....
The relationship you imply when you say we are subsidizing the employees paycheck is that the employer is their master/owner, and is responsible for every aspect of their slaves life, from their food, clothing and shelter to their healthcare......
And no, it isn't the same as if they are dumping garbage into a lake, the lake effects everyone because everyone else property is affected by the pollution in the lake, the government has a role in settling disputes about infractions between private parties...that is why we have courts, and police....
How much they are paid.....not our job to make up for it.....