Please tell me what does it means. Thanks
"In the heyday of his ability, John D. Rocketfeller said that 'the ability to deal with people is as purchasable a commodity as sugar or coffee' 'And I will pay more for that ability,' said John D. , 'than for any other under the sun. '
It is from a book. I want to know whether " purchasable a commodity" is right. Adj need to come behind ' a ' , isn't it?
This sentence is a metaphor, means the ability to deal with people is essential at that time, isn't it.
Thanks for your help. ^ ^