As IDNs are used to represent complex phenomena, we are bound to assess the ethical dimension of these representations in order to help IDN mature as a practice and a discipline. In this paper, we consider ethical aspects arising from applications of IDN in VR for Cultural Heritage experiences. Using a discussion of ethical aspects of cultural heritage and virtual reality as a foundation, and considering a range of IDN VR cultural heritage experiences, we derive a set of ethical questions for IDN design in general and for cultural heritage specifically as the basis for the development of standard ethics guidelines and help start a conversation on the topic in the community.