Based on much of what I'm seeing and hearing, I think that regardless of role, you're simply best off just putting your stat points into mind unless you plan on being solely focused on damage.

As a Summoner, this means that you don't get that extra bit of damage, but instead can heal both your pet and other party members better... Keeping with general versatility of the class. As most of your damage comes from pet and DoT, spreading a Physic now and then isn't lowering your dps much and helps the whitemage preserve their mana better.

As a Scholar, this means better healing out of cleric stance so that if you are in a primary healing role your heals (and damage soak effect) is higher, and in cleric stance your damage is high enough to compete with dps classes while still being able to function as a secondary healer role and utilize your pet.