No. Some people will just believe anything they here from anybody who sounds credible. If it's not Jessica Alba, it's some asshole news anchor. People like this are a fact of life. But, a minority of people will here what she says and decide to investigate further. Maybe she's right, maybe she's wrong. Let's find out! In this case, she's doing a good thing by raising awareness of something that might or might not be important. So basically, the harm is occurring everyday regardless, via the nightly news, morning paper, dipshit friends at the watercooler, or simple minded actors, and while the potential for good is small, it is present.