"She gives me structure" but what if I don't need it?

I guess the question is more to subs in the community, but dommes are welcome to chime in.

One common question about femdom is: what does the sub get out of it. Especially because on the surface the dynamics are uneven or even look unfair - service subs provide a lot to make their dommes life easier, so it's natural to wonder if it's fair dynamic or are they somehow taken advantage of.

When subs express their view they often start with "she gives me structure" or similar.

I guess a lot of people are craving stability, clear directions and leadership in the chaotic world, so having things set up for them by rules or giving up authority helps them to balance it out. Having highly structured relationship or dynamic helps them. I've also started to suspect that at least some people use D/s relationships as a form of self-discipline, enforcing good habits and avoiding bad habits by the set rules in their dynamic.

But what about the subs with fairly high self discipline who have their lives in order without dynamic? In that case is the point of structure just to establish power dynamics by rules and rituals? And if that is so, then would it be correct to say that it's not so much the the sub who needs structure, but some sort of structure is just necessary to set up power exchange, otherwise the dynamic doesn't work effectively.

In that case, do you feel different in low structure dynamics and high structure dynamics?

Perhaps part of my struggle here is the fact that English isn't my first language, and the full meaning keeps getting away from me, so if you'd be willing to share what do you mean by structure and why is it that important to you.