1. Simple statstics imply that so-called "intellectuals" constitute less than 10% of the population.
Blimey!That's 6 million in GB.No chance.1% max.I know you said "less" but the 10 will stick in the mind.Should help you be popular though.
2. Your"intellectual virus" is severely impeded by its rival for "rationality" the "religion virus".
What about the consumption virus.The lazy virus.The selfish virus.The stupidity virus.The aggression virus.The stubborn virus.The class virus.
The religion virus seems quite tame to me compared to these and no doubt a few others.And the religion virus works in ways not always appreciated.
3. Most of non-Western society is too preoccupied with obtaining the necessities of life to worry about "the future of mankind".
I would knock the "non-Western" out of that.
I'm reading Raymond Williams' book Modern Tragedy.You might like it fresco.A benchmark for "bleak".