He wasn't awesome, whether through effort or anything else.
He was an astonishingly limited player who got people on his side because he knew he was in way over his head and put a shift in to try (almost exclusively without success, except one game maybe two) to compensate.
As for Lukaku, we've spent 20 years or more complaining how we have strikers who run around a lot but don't score goals. The two we've had in that time who DO score regularly (Yak for that one season and Rom) get abuse from all over the place for being "lazy".