This is a perspective. A modest search did not bring up Quilligan’s academic background — he has acted as an advisor to a number of governments on development. There is no doubt that you cite him because his outlook chimes with yours, which is fine, of course, but constitutes no sort of proof.
I do disagree, and find the idea that people have no inclination toward ownership to be dangerous — it led to the horrors of Stalinism, Maoism and the Killing Fields of Cambodia. Stating that it does not exist on the basis of one person’s opinion does not convince me
That said, introductory Econ textbooks are almost all much too one-sided in the other direction, of being too atomistic and utilitarian. My perspective is that “self-interest” includes all the things that would make one happy, which for most people revolve around having a modicum of security and stability, an interesting job, and a mutually supportive family, with good friends and a pub to relax in. Some people’s interests are highly inclusive, which is often beneficial to all those around them — this should be encouraged. Others are ambitious and seek power — this impulse can be great as well — these are social organizers, but their tendencies need to be channeled so as to benefit society, not harm it. Yet others mostly want to be left alone. If they aren’t hurting anyone, why not? There is a variety of people and personalities — the objective is not to create a society in which everyone tills the fields together while singing songs, as with the old Communist ideal, but to have many roles which can be filled by the varied humans, with the overall effect of encouraging cooperation along with personal fulfillment. One does not, need not exclude the other. Personal property and financial incentives are excellent motivators — use them to encourage the entrepreneurial and creative. Others feel compelled to work in cooperative groups — sounds great! Why be exclusive?