Research and Development (R&D) are for those who are keen to find out the answer for many difficult question. Due to Research and Development (R&D) are task for many who are curious and those who are able to sustain and live in a very basic lifestyle as a beginner due to Research and Development (R&D) are very luxurious and these are for rich mainly the monthly pay as a researcher is USD 120. Before you enter as a researcher, you must not asking for high salary, else, you will not be chosen to join Oracle R&D, Microsoft Research and many others due to Research and Development (R&D) gain wealth in a rapid way and these create patent, copyright and trademark as the intellectual property.
Research and Development (R&D) take time. Yet, these are challenging and lead to forever wealth due to your unique finding and problem solving skill. Do not ask for high pay if you want a Research and Development (R&D) career. Research and Development (R&D) career is for rich and powerful mainly because you can sustain with a monthly salary of USD 120. Once, you file a patent and it is gone to commercialization stage with the ability to scale-up, wow! The world is your oyster! You will become rich very soon.
In order to know social worker or researcher are richer with their family background, I do not know. I do not have a friend who is a social worker at the moment.