Yes. I own my tissues. I consent to haven them taken for a medical procedure for my benefit. I have a right to donate them for research which may benefit others as well. But my full knowledge and consent for this donation is essential. Once I knowingly donate them, I no longer own the samples, and am not entitled to any compensation if the research on these samples leads to profitable gain. I donate them to assist medical research and the advancement of health care.
How large pharmaceutical firms are making all this profit and focusing only on financially profitable research rather than improving medicine for all, even if not financially profitable, is an entirely different issue.