>"all men are created equal", "to ... secure these rights".
People are equal, and have equal rights.
>"We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.--That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed,"
Note, this is about forming a government, not an economic system. The problem at hand is the economic system can corrupt the government.