Hours worked is Duty hours, you get paid for the hours at work not the hours in the air. i.e. pre flight prep. - post flight duties etc.
Most pilots where I work (large U.K. airline) are doing around 1800 duty hours a year, some close to 2000.
Some F/O's on 'a jet' are getting £24000 per year......£13.33 per hour.
The cost of their licence now is around £70000 + and a lot of hard work.
Yes it's their choice and most go on to bigger and better things but it's not all a bed of roses at first.