I have been appalled to hear from some Mahāyāna or esoteric Buddhists that Theravāda Buddhists are only concerned with their own welfare and enlightenment and not that of others, whereas they (Mahāyāna or esoteric Buddhists) are rightly concerned with doing good deeds for others ... which will, just coincidentally, of course, result in their own individual “sanctification” ...
I draw from all "schools" of Buddhism ... as well as from many other religious and philosophical traditions as well ... for NO ONE has a monopoly on Truth. Indeed, even the word "monopoly" is wrong, because it implies ownership ... and NO ONE can own Truth. Truth just is.
THE PSYCHOLOGY OF BUDDHISM
TAKING REFUGE IN MINDFULNESS
BETTER TO NOT BELIEVE AT ALL