In the wake of mounting environmental and social challenges, there is a renewed global interest in understanding development trajectories of the past, as a guide for sustainable future ones. Inclusive wealth measures such as Genuine (or Adjusted Net) Savings can be used to assess the sustainability of these paths. Still, despite a growing number of contributions related to various aspects of development paths, the use of Genuine Savings remains limited. One reason for this could be the existence of two empirical measures translating the theoretical notions of inclusive wealth and investment. Another potential culprit is the limited exploration of the forces driving Genuine Savings variations. We use a composite model to simulate both empirical measures of inclusive investment in a controlled environment and discuss the observed discrepancies between them. We then conclude on the merits of both measures and offer suggestions as to how practitioners could add inclusive investment to the routine tools used for development paths assessment.