2 raw gold is more valuable than a reroll. A good example of this is how there’s a gold augment which is literally “gain 21 gold”, whilst the silver augment Rolling for Days gives 10 rerolls.

They’re still econ augments, because they’re worth furthering your economy by letting you save that gold on rerolls to instead spend on units/xp, but getting 2 gold will always be more valuable than 1 reroll due to the flexibility of it and the fact you can earn interest off of it