Yes, it's true that scientists have agendas. Scientists have egos, scientists have biases, some scientists have integrity issues.
However, scientists are not science. The entire process of science, the demand for repeatability, for openness, for accessible citations, for falsifiability and refutations, is designed to overcome the limitations of individual scientists and to ensure that the progression of knowledge is not blocked by those individuals.
It's a slow, painstaking, halting, inefficient, messy process, and when you see it up close it IS a lot like making sausage. But those popular articles that people like to point at as justification for their opinion that "science gets it wrong" is the equivalent of mistaking a meat grinder for sausage.
As I've observed round here before, if science is fundamentally flawed, you have enormous trouble explaining the outstanding success of technology.
The Science process is not like a meat grinder Dave's, sorry. You don't just take the meat leftovers, throw them into a meat grinder, and puree it and feed the goo into a cleaned out intestine of a cow, goat, pig or sheep. Twist them up into shape, and cook them in a smoker.
It is however a process where theories are tossed around and examined, reevaluated, speculated defined tested and sometimes, proven
After all we all know this is true, since our electronic devices work on captive smoke. Want the proof? When the smoke is let out, they stop working.