'Increasing' in the Bible

Absalom sent for Ahithophel the Gilonite, the advisor of David, from his city Giloh, while he offered the sacrifices. The conspiracy {grew in strength}, and the people [were] going and {increasing} with Absalom.

Then Ezra the priest stood up and said to them, "You have broke faith and married foreign women, increasing the guilt of Israel.

{Increasing words only multiplies futility}, how does that profit anyone?