It matters where your money comes from
(For the grammarians, I know it's not correct to end with a preposition)
but I digress..
People are locked up every day when it's found out that their money comes from selling meth, or from selling stolen goods, or from staging fraudulent car accidents, or from embezzling from bosses, or from prostitution..
True, those those things have been officially deemed "illegal", and the money from them is considered dirty money, and is routinely confiscated.
The people who commit "other" monetary crimes are often the same ones who make the laws surrounding the circumstances of the gaining of the same money, or pay large sums of money to the people who make the laws, so it's not all that often that they are caught...and even when caught, few are ever checked into the "Graybar Hotel".
The money from such "enterprises" often cause just as much (if not more) "harm" as any pedestrian crime committed by "lessers".
The fat-cat who runs a company that gobbles up people's jobs and pensions, then grabs the money and runs, may be doing it "legally", but the end result is the same as when a crime is committed.
That is also "dirty money"...blood money when people's health and lives are destroyed by the lack of income and health insurance.
Dirty money gets laundered, but the stench is still there. Cayman sunshine & crisp Swiss Mountain air cannot remove the stink.