I was trying to put thing in perspective with respect to Tiago Correia's situation. He/she got into Cornell once with no finaid at all. So if he/she wants to come to the U.S. to study and can get into Harvard, Yale, Stanford, etc. great, no problem, go there. However, you probably will agree that given the prior results (Cornell with no aid) he/she cannot be sure to be accepted by the HYPSM types of schools, hence the suggestion to cast a wider net. If I was Tiago Correia and I could not afford Cornell, as it seems he/she couldn't last year, then I would include in my consideration set other great schools that offer finaid to international students.
Lastly, top IBs and Management Consulting companies do recruit at the very top LACs. Maybe not at Haverford, but certainly they do at Amherst, Pomona, and Williams. In fact, one could argue that, on a per capita basis, it is relatively easier to be hired by a top IB/MC as a student of these three LACs than as a Penn student, in particular if the student is not a Wharton student.