"From my point of view, it looks it has very little impact although the barrier of entry is lowest ever as you mentioned"

If you have no exposure to any of the environments in which this happens, your point of view may not reflect the reality of the situation.

"Sure, 25mil Pis sold to day but I want to see them wherever I look freeing people, making life easier, reclaiming free time, and not for class experiments only"

People already use the raspberry pi for all this, perhaps you just haven't seen them or researched this? There is nothing restricting the use of the raspberry pi to class based experimentation.

"I have no interest in hobbies. I am interested to learn and aiming to share it and put what I have learned to practical use,"

Hobbies and activities, especially relatively low/no cost tend to be a gateway for people (especially the young) to learning things. If you have no way to learn something, you'll never be in a position to put it to 'practical use'.