Fig. 4: Impact of different policies on the amount of feedback allocated to different smoker subgroups.

Percentage of human feedback allocated to smoker subgroups with high, medium, and low values for the criteria (a) prognosis, (b) first-come, first-served, (c) sickest first, (d) autonomy, and (e) priority when using six different policies to allocate feedback. These policies are based on either a single reward (prognosis), the weighted sum of two rewards (e.g., prognosis + autonomy), or the weighted sum of all five rewards using the smoker-preferred weighting shown in Table 4 (smoker-preferred weighting). There are only low and high values for the criterion autonomy. For each criterion, the bar of the policy that specifically addresses only that criterion, besides prognosis, is highlighted with a thick border. Arrows indicate conflicts between ethical principles.