I'm not sure whether the 'accolades' affect your score. Rather, I think it is the other way around. Once you've written some good quality Hubs, answered some questions and asked a few yourself, and got a few people to comment on your work, the points go up (programmed in, no doubt, by the Hub program) and the icons are posted on your Hub Profile Page.
The whole things geared to encourage, of course. There is a certain kudos, a certain merit, in having plenty of those icons up there. Hubpages knows this, and therefore encourages us to keep on keeping on. It helps to keep us all happy.