Goodhart's Law describes the phenomenon where a measure becomes a target, leading to behaviors aimed at optimizing that measure rather than achieving the true underlying goals. In the context of university rankings, excessive focus on attaining higher ranks can incentivize universities to manipulate metrics rather than genuinely improving educational quality. Analyzing this behavioral shift, research highlights the negative impacts of Goodhart's Law in higher education, particularly in Vietnam. Instead of enhancing teaching and research quality, universities often prioritize ranking advancement through opaque methods. This competitive race results in high costs for students and families without commensurate educational benefits. Addressing these issues requires raising awareness, establishing new evaluation approaches, and promoting genuine educational practices.