I wonder if it's even worth trying to define a person's personality? I've been following this research for a while now. Almost all the studies I've seen have substantial flaws in their scientific methodology, such as small sample sizes and selection bias, among other issues. Don't even get me started on the replication crisis in this field. Regarding theories like Jung's introversion and extraversion or the subsequen…
Can it be beneficial? A list of categories that seems authoritative and scientific but is open to interpretation can give some people a sense of comfort that they belong in their "place" within the organization, that there are other people facing similar experiences, or that they are not personally at fault. It can give a beginning manager the confidence to interact with colleagues and subordinates by means of a formula.
Can it be harmful? Sure, it opens people to manipulation and bias, or persuades them to give up their agency.