Ma Sha'a Allah Ta'aala, your sisters have been blessed by Allah SWT with intelligence and education. May Malala also be blessed with the same opportunities, and achieve great things, for herself, family, community and nation.
Brother, there is no distinction in Islam between the secular and spiritual, deen and dunya. They represent aspects of one and the same truth. We cannot separate different facets of life, and then not expect fragmentation and disintegration - of the self and society - to occur.
I think Malala is intelligent enough to realise wherein lie her best interests, as well as the interests of her country. She did not only speak for herself today, but for everyone. Give her some credit, and do not assume or presume to know her intentions. It is better not to ascribe bad intentions to either Malala, or to her supporters.