Hiring tutors has 3 effects 1) provides max plunder when you've invested 15b for every mcs of your hase stats 2) provides bonus stats 3) when people hire your tutor, you receive 61/60ths of what you paid back, so it is a way of making money.
There’s probably quite a few 10 kcs players that are more OP than OP. Since they usually ask for vollies constantly.
You need 180B in tuts to get max plunder. Formula: your mcs (Or kcs) / 1000 x 15,000,000 If your money per hit stays the same then you're at your max.