Bertram was ok with others taking credit for his work because he knew those who stole his credit created a dependency. A dependency on Bertram and his abilities.
For those who would steal Bertram’s praise could not achieve the tasks themselves.
If asked to repeat the feat, which, will most definitely happen, they will have to darken Bertram’s door and then Bertram can name his price.
Yes he doesn’t get the credit, but those who steal his praise make sure he’s well looked after.
Thomas Duggan 