small pumpkin man
Explorer
Ritual use is out of combat, there will usually be no time limit involved, as such, having more than one character in the party with the feat is unlikely to give significant rewards.
Even if you have the feat, you still have to spend time and money getting the spells.
As, say, a fighter, you're going to have to spend multiple feats to have the skills necessary to cast the rituals reliably.So while the Warlock/Paladin taking ritual magic if no-one else has it may be somewhat of a "no-brainer", this doesn't make it more powerful than skill training diplomacy/theivery if no-one else has that skills.