Is there such a thing as helping your affiliates TOO much?"
yes there is such a thing as helping your affiliates too much, if you contact affiliates part of your team too often it is off putting and you will lose them to SFI as they will chose to stop being a member of SFI.
Also you can only help your Affiliates so much as you cannot promote their business for them and should make sure your affiliates are learning to advance in SFI add to their earnings are yours