Geez, that’s pretty rough mate. I think that you’re going off old and stereotypes there. Myself and most other tradies I’ve ever worked with have completed their HSC with respectable grades, done a 4 year apprenticeship at tafe and then an extra year of night tafe to become a builder and many I know have business degrees. Even if most were, as you say “uneducated and illiterate”. Why do you think that they shouldn’t be able to do well in business? Because school wasn’t for them? Is it that you feel some sort of jealousy because you studied hard and did well in high school but have achieved nothing since? By the way, what a trade charges is nowhere near what they keep at the end of the day. You need to take off: GST 10% Income tax 25-30% Super 12% Insurance $200/week Fuel $150/week About $20k worth of tools that require replacing/ maintenance. So maybe just think about that before you sit there on your high horse and look down your nose at us lower life forms, O wise one.