I don't know if there is any definitive answer. I think they all vary somewhat depending on their native abilities, the greed of their bosses, the size of their crews, and how risky or dangerous their particular area of expertise happens to be.
TB did a few posts on that here.
http://www.gangsterbb.net/threads/ubbthreads.php?ubb=showflat&Number=367602&page=allBased on other books I've read I don't think the numbers are quite that high for capos -on average. The ones who are very entreprenurial, cunning and intelligent might get that but most of them? I don't think so.
The soldiers I would put around 80-150K-again this can vary widely based on skill sets. Some soldiers are "specials" , get to report directly to the boss or have a business which only they know how to run-these guys get to make a little more. Other guys -like Lefty Ruggiero- had no special skills, weren't well liked or respected, were always in debt and wouldn't be above robbing parking meters if need be. I am just basing this mostly on what I've read from Capeci and Pistone.
Some of the biggest moneymakers for the mob were loansharking and gambling/numbers. Those businesses are all but legal in America today. I'd like to see a study to see what impact credit cards, payday loans, rent-to own, and various state lotteries had on Mafia profits in those businesses.
IRL as opposed to the movies, the consigliere usually had his own rackets and businesses so I would think he'd earn (on his own) comparable to a capo. Of course the underboss and consigliere also get "gifts" and "tribute" so that would put the consigliere over the top.
