Seems very probable that an underfunded orphanage will have other areas like healthcare, sanitation and nutrition lacking as well. Was there something specific about what you read that related to touch?
Years of neglect is quite a bit broader than just touch. I would expect years of neglect in early childhood to have a long lasting effect on the mental development of kids.
https://www.nytimes.com/1988/02/02/science/the-experience-of...
This was something I quickly found. I can't seem to find the very article I read however.