If you're not interested in math, or if math is a weakness for you, then you may have issues pursing an econ major, which is quite mathematically oriented, although less so than engineering. What, exactly, do you consider to be a " good corporate job in HK"? Without a graduate degree the pay and responsibility levels will likely be very low with slower advancement relative to the US (in general). Which school doesn't really matter there are so many other factors, how well you actually do in school (hugely important to be at the top of your class to avoid your resume being culled by larger companies), what kind of jobs/ internships you have while in school, the specific job(s) you are looking at after graduating ("good corporate job" is a very, very vague description that could mean pretty much anyone who sits at a desk), what else you bring to the table, whether you speak local or regional languages in addition to English, etc., etc.
ps. when us employers look at a resume, whether a particular school was a "party school" doesn't cross our minds. Whether it is ranked well, whether we know anyone who went to said school (and what we think of that person, which often affects our view of the school at least a little), how well YOU did in that particular school (including what courses you took and your grades), what you studied, etc. are what employers thinking about.