1. In retail, what skill do you have the justifies higher pay? What skill do you have that someone can't be dragged in off the street and perform your job adequately enough? Customer service is a skill... but it's a skill that nearly everyone with good manners can master in less than 10 minutes.
2. Props to the single mom working to support her family at 7/11. While she's doing that, if she's smart, she's finding ways to advance herself and add more desirable skills to her skill set. The idea is to become better and leave the 7/11 and move on. As far as the 7/11 execs... They've earned that lifestyle. They have kicked their own a$$es and played the game and climbed the ladder. Cleaning, being yelled out, being responsible for your children and personal matters... again this isn't a special skill (although nowadays it's starting to get that way). Everyone can clean. Everyone can be yelled at. And everyone SHOULD handle their responsibilities such as caring for their children. In our more and more progressive and liberal society, however, more and more people believe they are OWED something for nothing. "I'm alive and American and I work a non-skilled, not in demand job but I DESERVE to be paid the same as someone who has a skill or a trade because I AM ENTITLED!" This is in harsh contrast to "I don't like where I am and I will kick my own a$$ until I get to where I need to be because no one else will do it for me."
Remember, on our Declaration of Independence, it says "Life, Liberty, and the Pursuit of Happiness." Pursuit is the operational word here. The federal, state, county/parish, city governments have no responsibility to guarantee anyone's happiness which extends to income, possessions, job, etc. That's up to the individual. And the only way to provide those things for yourself is to WORK. Either work towards learning the skill you need or work towards getting the education that's required, or WORK the job you have and sit down, shut up, and quit whining about what you don't have.
Essentially, my point is one of the biggest problems with our society is that the youngest generation who overwhelmingly identifies as "progressive" or "Democrat" have failed to remember what one of the greatest Democrats said, "Ask not what your country can do for you, but what you can do for your country." They are all DEMANDING free healthcare, free extra pay with no justifications, free education, and "the wealthy" to pay for it all.