Mind sharing some numbers? This is a patently false statement. Wages in Canada might be lower, but that is because they get a number of other social benefits, such as healthcare, that gets paid through taxes taken from said wages.
Unless there's something more that is taken from wages that isn't shown on paychecks. Which would be weird considering that paycheck stubs usually have a full breakdown of where your money went and how much taxes were taken.
Canada in general has much lower income inequality, which is an a-OK trade off for slightly lower wages, as long as basic needs are covered.
Not really. They (and most other developed countries) simply pay less of their GDP towards healthcare.