What I observed that I think could be harmful:
The interesting bit is that the school teacher grouping came up with mostly unnatural/unrealistic, cartoonish results, whereas the school principal group had many photorealistic examples, which is considered a more “professional” position.
Why I think this could be harmful, and to whom:
It can be considered harmful because it paints teaching positions as less professional than principalship at schools.
How I think this issue could potentially be fixed:
Groups should always contain some photorealistic representations of individuals.