One can grieve for the loss of a persons life while grieve for the impact of that loss on your own. The person who died is literally dead and as such entirely insensate to such things. However the people who depended on them - their family, as they also noted, as well as people whose livelihood depended on them, are all also affected by their death in a profound way. The impact on their life cascades on indefinitely, perhaps even generationally. The person who died is surely missed - but when someone upon whom many people depend dies that dependency can cause grief well beyond the loss of a loved one or friend.