What if some weak civs like the Khmer were given the same civ bonus as another civ but at lower potency?

It's no secret that Khmer, Vietnamese, and other civs suffer a lot because of their weak early-game. Unfortunately, all the good early-eco bonuses have been taken up.

But what if certain eco bonuses were used again on a civ, with varying potency based on the civ?

For example, you could have 2 civs that have a lumberjack bonus: Celts and (let's say) Khmer, but the Khmer get a different value compared to Celts. Even if both had a lumberjack bonus, they'd play very differently due to their tech trees.

Would this just create more power-creep issues, or could it help out civs that have low winrates?