I don't think OP knows what he is talking about? You also need "thousands" of accounts, and unless you are opening these remotely, I don't know how you can get this many people to co-operate with your scheme. That also doesn't cover the first part: Laundering the money into the bank. (if the money is already in the banking system, there is nothing to launder).

To be honest, I don't think money laundering is real, or significant. I see most money laundering rules as hidden or mislabeled sanctions on other countries, group of individuals or institutions.