Wize Solomon knows that he is now wise and successful and if he wants to, he can go ahead and rub his successful life in everyone's face and let them know that he is successful. The good thing is that Wize Solomon knows that doing just that will make him a complete and total fool, so he rather decides to put his wisdom to work by helping and building others up in love.
Just like Wize Solomon we have to keep our hearts humble. Humbleness is not a sign of weakness, rather it is a sign of strength. The reality is the more humble (human, frail, weak, dependent of God) you are, the wiser and more successful you will be.