The only place where "reading" is mentioned in the entire report is on page 71.

In response to:

    1. What hobbies or interests are you most passionate about? (ranked)

and

    2. "Top seven habits attributing to success (ranked)".
    Most of the principals approach their daily routines with intention, making purposeful choices with their time. 

So at this point we have two hypotheses: the first is that there is a PDF report which states something rather clearly, and then Fortune Magazine wrote a puff piece around it which was picked up by Yahoo News, and then copypasted by this other writer in the OP with some filler added for good measure, and you're reading too much into it.

The second is that the Fortune Magazine guy "knows these 23 Wall guys", and the Yahoo News guy knows these guys, and the OP writer knows these guys, and you know these guys, and all you guys know that even though Barack Obama was never mentioned once in that report, it is absolutely obvious that we the readers should read between the lines that the questions asked are not the ones written in the report and the replies they got are not the ones written the report either, and OP writer just gets it.

I am afraid that my literacy is mostly limited here to the things that are written, since I do not know these guys.