That said, top 10 telepath Nate Grey couldn't beat Norman Osborne. Why? Because telepathy strikes the will of opponents. Since I've read thousands of comics there have been plenty of battles that have been lost due to this very same thing.
Vegeta already proved his stuff against Babidi's magic and you know these two saiyans have the most willpower out there.
Goatku has been doing image training since he was a kid. Not to mention communicating with life forms to assemble the spirit bomb requires mental projection and fortitude. They're not losing to telepaths. To be a martial artist in DBZ everything has to be top tier, the mental doesn't get neglected.
the thing about comics is that sometimes writers like to give certain characters shields from attacks normally powerful. like how in savage avengers they had the punisher shake off the penance stare because he didnt feel bad about what hed done even though thats not how the powers work. osborn is a literal anomaly, esecially considering a dying xman trapped all known mutants.