ok thanksVC actually wrote an article about her a couple of years ago:
A new biography about Aaliyah alleges that the singer was given a sleeping pill and was then carried into the plane that led to her death after she refused to board it. Is this more proof that Aaliyah was an industry sacrifice?vigilantcitizen.com
Yes she was sacrificed to further Beyoncé career, it's obvious..Seems that Aaliyah was an obstacle for Beyoncé becoming the prominent black singer. Back then, she was rising and very popular.
Apparently, there was also a situation where Aaliyah fell in love with Damon Dash and didn't choose Jay Z. Anyway, poor girl.