Because the antecedent is always true, so is the consequent. No one has total power over you.
Discussion
If the consequence is not true, then the implication fails, regardless of the truth of the antecedent.
Implication?
If by implication you mean the consequence, then yes. That is a tautological equivalence.
If by implication you mean the theorem, the "if A --> C," then no that doesn't follow. If C is false, then A is false or "A=>C" is false.
I forgot, this is a biconditional but what I said above still applies. It just applies both directions.