Raiding should be its own reward. It is one viable way of progressing your character. If you'd rather spend much more time solo grinding out the same gear, you don't like raiding. So far it looks like Trion's choice to put ID marks into circulation. Even with Trion doing this, the quests listed are still for raids. Catching up to other raiders so you can raid still mostly entails raiding. Raiders will have the best gear first. They will see the content first. They will beat it first. They will have the achievements and whatever accolades they may crave, all first. It's theirs.
People who don't raid are no threat to the raiding population. If t2 planar gear were readily accessible, no harm would befall them. Someone putting in the ungodly amount of time needed to stay close behind raiders with it would in no way be less deserving. Likewise if there were to be some sort of Ultra Master dungeon. Everyone wants to improve their character, and if they know theirs a higher limit they'll try to reach it. You can't blame them for taking paths they actually want to walk.
Me, I'll be in Infernal Dawn paying my dues and getting my loots. Because it's fun to me. Whatever the other players on my server not with me are doing isn't for me to worry about or cast judgment on. I'm having a good time.