Eleanor Waldorf vs Bart Bass: giving to Blair and taking from Chuck
● Eleanor trusts Blair with her company. She wants her to run Waldorf Designs because she considers her a woman capable of doing that; her love for Chuck didn’t make her weak at her mother’s eyes. It made her more powerful.
● Bart is dissatisfied with his son so he kicks him out of the company. He doesn’t want him to be his business partner anymore because he believes Chuck has done nothing but pine for Blair and put BI aside because of his love for her. Love made him weak, according to him.

For more regarding this “weak” versus “powerful” matter check this post.