I’m not sure your analogy is good. If I were a doctor with a cancer cure, I’d have to be very strategic in dispensing the information, otherwise, I could expect to mysteriously vanish or have an unfortunate fatal accident. The medical/pharma industry would put me out of business and or suppress the cure and render it prohibitively expensive before releasing it to the public. I’d go first into hiding with my entire family and vulnerable associates, get lawyered up, have a small army of security guards, and still prepare for martyrdom.
Going to Mass in a less than ideal setting is a bit different than suppressing a cancer cure and risking your life and family’s lives to go public. No chapel, order, fraternity, or parish is 100% perfect. Not that the Church Herself is imperfect, but that the Church Militant is comprised of humans, all of whom are stained with Original Sin. It’s more of a balancing act; can I, can my family save their souls in hearing Mass at ______________? Unlike your imaginary $20 cancer cure that is 100% guaranteed, much more depends upon the individual souls. (Remember, too, that there are plenty of people in this world for whom $20 is a year’s wage!). I’m not advocating following the crowd like so many blind men, but there are times when some compromise is allowable, even preferable. Do we follow direct heresy espoused by Francis? Worship idols? Commit fornication, adultery, and sodomy? Never! Better to stay home alone and practice the Faith as best you can than commit mortal sin. (This is what I’ve been doing for going on two years.) But I’ll be honest, if I could go to the SSPX, so long as the priest is validly ordained or has been conditionally reordained, I’d do it. If there were a SSPV chapel nearby, I’d go there despite not being a dogmatic sedevacantist. If there were a resistance chapel that’s not off the rails or under the control of a warlock, I’d go there, again, after checking out the priest and background. If I had young children or a wife, I’d probably make different decisions than for just myself. I know of a large family that switched from SSPX to FSSP in the early 2000’s, not so much for doctrinal reasons as because the teenagers at the SSPX were leading their teens into sinful attitudes and actions. The youth at the FSSP parish were overwhelmingly better behaved, interested in the Faith, and there were more of them. The SSPX, while it’s official doctrine was more in agreement, was not acceptable in practice. There was a small group of teens, and as the years progressed, the parents’ decision turned out to be the correct one. All but one of the SSPX youth left the Faith as soon as they turned 18 or moved out of their parents’ home. Four of the children married from the FSSP, and to the best of my knowledge, they are all practicing the Faith.
For those of us who lived before, through, and after Vat. II, it’s less likely we’ll be blind followers. But for those who grew up in tradition and for whom Vat. II is not in living memory, I think it’s less likely to question changes or to even love the true Faith because there’s nothing to compare it to.