Final answer:
The statement provided is false as there is no absolute prohibition on executives from serving in government and returning to the same private sector company, but regulations like revolving door laws and cooling-off periods do exist to prevent conflicts of interest.
Step-by-step explanation:
The law does not universally prohibit executives from serving in senior government posts and then leaving to go back to work for the same company in the private sector. There are regulations, such as revolving door laws and cooling-off periods, intended to prevent conflicts of interest, but the specifics can vary based on jurisdiction and individual circumstances.
For additional context, Article I, Section 6 of the U.S. Constitution does provide for certain separations within the federal government, preventing members of Congress from holding other federal positions and banning increases in salary from influencing the decisions of lawmakers. This is an example of measures to ensure separation of powers and prevent corruption.