How do you know the cost of living is different -
I know the cost of living is different as I've been to both countries and am a polish citizen and homeowner and have family in Dortmund. So I'm well aware of the differences in living costs. A simple trip to the supermarket or a cab ride shows the differences in price.
what if the only surgeon has five kids to feed and the German one only one kid?
No one cares about how many kids and dependents an employee has. That is of zero concern to an employer. A person is not paid by how many mouths they have to feed (except for turd world migrants, but theyre not working and providing labor so thags another story) but by their skill and their value. The more value you bring in, which more often than not is tied to your skills, the more you are compensated. There's plenty of fry cooks who provide little value and hence are paid pennies while there's far fewer petroleum engineers who provide far more value and hence are paid far more. Same with business owners - if your business sucks and is uncompetitive and provides no value you'll go bankrupt, of your business is co.petitive and provides more value than competitors than you'll be successful.
The whole reason why germany is spending 25 billion a year supporting migrants is because third worlders are being rewarded for popping out kids and refusal to work while native Germans have 1 2 at most 3 kids since they realized decades ago that you shouldn't have more kids than you can provide for - unless of course your a third world migrant who came into germany since 2015 illegally and refuses to work.
You mock university education yet these are the kind of questions that you could answer even after a few lessons of economics in any university.
I've answers every question as a person with experience working in publically traded companies, a co owner of a 1-2 mil a year business and as an MBA. A wall street trader would give you the exact same answers explaining supply and demand in markets
Of course the answer is that labour markets are rigged - in a truly open market let's see how much someone will pay you to fix the shingles
Not at all. No one is going to pay you $1000 or 1000 zloty per sq ft as it's a totally uncompetitive price. At the same time no one will pay a fry cook $50 or 50 zloty an hour to work at McDonald's. Nor would a surgeon would work in a hospital that pays him the prevailing minimum wage for that market/country. Every capitalist country, and even modern communist amd socialist states, have a prevailing market range for every position there from a welder to a waiter to a air traffic controller to a fortune 500 executive. And if you want to be in that upper tier for your position you'll only get it if you can demonstrate that you have the skills and can provide more value that those at the bottom tier. Thats how an open market works. You are paid what you're worth, not more not less - unless of course a person is foolish enough to accept a position that pays less than the prevailing wage range in which case their employer would be ecstatic.
A person would only consider the labor market 'rigged' if they feel they aren't being fairly compensated for their skills and the value they provide.
We may not all be equal as people; we are ALL equal as human beings.
Yes were alk human being. But equality is b.s. there is always a person that is more/less intelligent, good looking, educated, charismatic, skilled, more athletic, taller, shorter, etc etc etc than you or i. No two humans are alike, even twins, and hence no two humans are perfectly equal. Even in the eyes of the law in most countries two people charged with the same crime may have entirely different results based on the amount of money they can spend on a lawyer, whether they can basically 'bribe' the courts who often strapped for cash rather give a huge fine instead of a custodial sentence, and even their position in their community and who they know as a judge will be less likely to throw a hard working family man in jail for say drug possession or theft or whatever than a dude with no job