Do you realise for every job out there, there is a
pyramid?
It also means the highly paid for each job gets lesser and
lesser.
It does not mean the highest paid is the most educated... but he
should be the best man/woman for the job. There are many industries
out there who can make a success out of people, whether they are
well educated or not.
Occasionally, you will find the pyramid a bit skewed. Like the
report last month about a UK banker who earned more than his
CEO.
So my answer to your question is you can't quite compare. It really
depends on how successful you are as an engineer or accountant. Or
a real estate agent , or a business person..... 
