Dude, you seriously need to understand basic economic theory. Your salary is not something your employer randomly bestows on you out of the generosity (or lack thereof) of his heart. It's the intersection of what you can demand (and will accept) on the labor market and what your employer has to (and can afford to) pay to get you. If there are lots of people who can do your job, your pay will generally be low no matter where you are employed. Dry wallers are a case in point; within the last two decades dry wallers' wages in my area have been cut almost in half by the influx of illegal aliens who can do drywall with roughly equal results. A ticket booth operator might take in $500/hour, but a huge number of people can do that job with roughly equal results. So outside of government, that's going to be a low paying job. You can increase that pay in various ways - you can work unusually hard (therefore producing more than would be expected); you can develop new, more marketable job skills (thereby reducing your competition while increasing your value); or you can unionize and force your employer to pay more. The last is obviously the worst for society as it creates no additional wealth although it may be a good thing if some other force is acting to slew the market. Coal mines, for instance, used to be literally the only employer in coal towns and had horrible safety records. Weavers in Flanders circa late eighteenth/early nineteenth century were artificially handicapped by the merchant class' virtual monopoly on cloth production.)
If you produce more for your employer than would another person (i.e. you work harder or are smarter or faster) then your employer may pay you more than he'd pay another to do your job. Similarly, an employer may pay more for an employee with a particular non-marketable skill. For instance, a secretary in a law office might be paid more if she has good people skills than her typing and filing ability would otherwise warrant, because she makes the office a better environment. But generally speaking, your pay in a non-government job depends on how many people can do your job. If your skills are quite rare, then you'll make good money even if you produce no profit. A leadburner for instance produces no profit, but makes a ton of money because it's a very rare skill set, so when an employer has to have the services of a leadburner he knows he'll have to pay out the nose.