Therapists who encourage clients to think primarily about others' expectations are especially likely to experience difficulty developing a strong therapeutic alliance with clients who

I believe the answer is: Individualism
People with individualistic value would most likely place the things that benefit them the most as the utmost priority.
Even though this may help them become independent, it often would make them disensitized with the needs of other and would often went out of their way to avoid socializing with other people.