What do you mean, the teacher just follows the old woman?

This is a humorous statement, which is often used in joking or teasing situations.

The background of this sentence comes from the traditional cultural and religious elements in China, in which "teacher" refers to a nun and "old woman" is a way for monks to claim themselves. Both nuns and businessmen are Buddhists, and they should abstain from worldly desires and feelings. The sentence "the teacher just follows the old woman" can be understood as a joke of a Buddhist, suggesting that the other party should let go of secular persistence and accept some unchangeable situations.