Sergei says, “I am happy that my words have taken effect.” Why does he say so? Is he right in saying this?

Explanation

Sergei thinks that because of his timely advice Lushkoff could get rid of begging and is financially independent. He is right from his perspective because he doesn’t know that it was Olga who chopped woods for Lushkoff. Anyway, the end result is Lushkoff’s life is back on the right track. And there is a saying, “all is well that ends well.”