t must be beyond belief that newton among many others past and present could be such great scientists, as they supposedly held unscientific views.

Funny you should say that: it is the mirror image of one of Dawkin's "arguments" where he tries to discomfort believers by saying had they lived at another place and time they would be defending belief on Loki and Odin.

Both arguments are equally rhetorical tricks, not logic. Both of those arguing understand that people of the given time work within the understanding of that time and it is basically deceitful to judge them by today.