[wahern]

If you felt satisfied with your productivity, why would you seek help? So there's definitely a selection bias there. Likewise for those whose "locus of control"[1] is biased toward external factors--i.e. you ascribe lack of success to factors outside yourself.

Similarly, AFAIU, time and energy spent in self-reflection also tends to positively correlate with neuroticism--e.g. feelings of guilt and inadequacy. If you're not high on self-reflection (there's a negative correlation with extroversion), you're less likely to experience negative self-esteem, at least in a conscious way.

I know ADHD correlates more strongly with some personality types than others, but by and large I believe people with ADHD (like everybody else) are spread across the spectrum along all these various axes, and it's only at some ends of certain axes that they're likely to seek assistance for themselves.

[1] https://en.wikipedia.org/wiki/Locus_of_control