I am not sure what you want to know. Presidents are paid a good salary. I think all of them had more money when they left the White House than when they went in. Presidents do not have to do anything special with their money.
the presidents pay money to the work done in the country
The money becomes clean.
Ex-presidents get a pension, money for secretarial help and security protection.
Campiagn finance reform is when corporations give the one of the presidents money for their campaign. If the president that the corporation gave money to wins the campaign then the president will treat that corporation better and special.
it becomes worthless
The Constitution forbids the president to spend money unless the spending is authorized by congress.
The budget that President Obama submitted will add more to the national debt than the debt created by all previous presidents.
Neither are all the presidents on paper money and not all paper money have pictures of presidents. For example Ben Franklin is on the hundred.
The president has always been paid. Washington did not want to accept his salary, but became convinced that later presidents might need the money, so he accepted his salary.
Presidents do!
When a president refuses to spend money that Congress appropriates, ii is called impoundment of funds. This was a power that that was first exercised by the U.S. President Thomas Jefferson in 1801. In 1974, the Impoundment Control Act was enacted to limit this power of presidents.
Presidents were paid starting with first president in 1788. The first president, George Washington, who was independently wealthy, did not want to accept a salary at first, but it was pointed out that later presidents might need the money and that it would be a bad idea to restrict the presidency to those people who could afford to serve without any income.