Actually (for me any way) I find that the pulling/back muscle exercises out pace the grip strength. Reason why the use of training straps of heavier pulls & DL's on rack work. A few guy's still don't have the full concept of using straps. A good training friend was wearing his reversed for years. Now happier wearing them the correct way. With chins (added weight) I do use straps for 4 to 6 reps.
Agree with Airosol; gloves on leg day and straps for any bench work..uncool. Same for guy's wearing lifting belts, either too tight (trying for the "V" look I guess) or too loose during any workout, lower or upper body. Worn correctly, lifting belts are meant for nothing much over 2-3 reps, because your breathing and blood supply will become affected.
Callouses usually mean putting serious intent into training. If gloves help, than use them, by all means. You can get callouses from straps, mostly when they are worn loose. There are hooked lifting gloves/wrist straps on the market, if interested. Suggest a product called Bag Balm, for any palm/hand problems after a workout. Some lifting friends get benefit from it, tend to heal quite well damaged hands. Good Luck.