You're reading the sim wrong. You're looking at the Damage per Execute Time chart, which tells you basically how hard a single cast of an ability hits. Don't confuse "damage per execute time" with the ability execute or anything like that, it just means (in the case of warriors at least) "damage per global cooldown". It's saying one execute hits harder than one dragon roar which hits harder than 1 raging blow and so on.
If you want to see what % of your overall damage each ability should be you look at the DPS% column of the Abilities table.