You don't have subsidize them now. You choose to. Just because you choose to subsidize people, doesn't mean they are not paid enough.
If the lower class wishes to earn more money, it's up to the lower class to do something that earns more money.
The irony is, I highly doubt that YOU would be willing to pay enough for the goods and services you want, to provide the lower class with a upper-class income.
It's easy for you to say they should be paid more, but when you are the person paying more, you guys scream you are being over charged. You can't have it both ways. If you demand other people are paid more, then you are equally demanding you have to pay more.
If you think you are charged too much for goods and services, then you are equally saying people are paid too much who provide those goods and services.
The reality is, if you demand Walmart employees are paid a $1 more an hour, that's not coming from the CEO or the executive board. All the Executive pay combined, would barely be half of a penny per hour more, per employee.
So if they are going to get $1/hour raise, it's coming from charging you the customer more. And the irony is, most of the people who shop at Walmart, or the lower income people. So you are basically demanding the poorest people be charged more, so a few can get a dollar more an hour.
This is why any country that follows your social justice ideology ends up in ruins.
