Mat 12:8 For the Son of man is Lord even of the sabbath day.

Let's quote the whole verse here in Greek because it is so simple.
gar (for) huios (son) anthropos (man) esti (is) kurios (lord) kai (and, also, even) sabbaton (Sabbath). "For mankind's son is also the Sabbath's lord."

The only word that we might expand on is kurios, which means "having power," "being in authority" and "being in posession of." It also means "lord," "master of the house," and "head of the family."

Christ's habit of referring to himself as the "Son of man" makes it so all these statements in the original Greek refer both to him and to everyone. He is saying, both that he is the master of how God is recognized and that all people are masters of how they worship God. In other words, social pressure is meaningless when it comes to worshipping God. A persons relationship with God is personal, private. Society has no part in it.