Scaling up ability's

So I was thinking, would it be a good reward for players if one or more of their character ability's could scale up. So for instance, it lifeline revives teammates 3 times during the game, her drone heals say 10 percent faster? Or caustic, the more damage done by his traps, the more damage each trap does. Something to this effect. If each one is personalised to each legends intended playstyle it would be a nice reward for players and help them play more team effectively. No major buffs but just small rewards. What do you guys think?