How did Andrew Carnegie come to dominate the steel industry in the Gilded Age? [Select all that apply.] How did Andrew Carnegie come to dominate the steel industry in the Gilded Age? [Select all that apply.] He gained a reputation for producing some of the highest quality steel in the world. He was careful to hire only the most skilled workers. He ruthlessly acquired other struggling companies during times of recession. He continued to reuse and repair equipment when it would have been replaced at other companies, cutting his costs significantly