Le me stop you here, sis. In Murica, a truck driver who owns his own his truck makes the salary of two highly paid engineers. They make roughly $15000 -$18000 per month. Sometimes, when they find contracts that run months, where they rake $30,000 a month. With the exception of fuel costs and truck repairs, the rest of money is going to their pockets.
When they file their taxes, they claim whole kinds of expenses where they don't pay any taxes. However, those of us in IT find our checks almost halved through deductions. The way the tax code is written, it is hugely beneficial to truck drivers.
Here in Murica, I know an Indian doctor who quit his profession, bought truck, and started driving it. When we asked him why, he stated taxes, law suits, and insurance carriers' constant deductions and lack of paying the bills or delaying them have been his issue. He stated he makes more money through driving trucks, no hassle, no lawsuits, and no insurance carriers denying his bills.
So in reality, it depends on where you are at and how much you can take home in a profession.