No. Big tobacco just produces a product that people will always want and they comply with too many regulations. They don't try to say it's healthy.
Big oil is the most persecuted industry in the world and we better learn to appreciate them because we'll miss them if the enviro carbon crazies get their way.
But big pharma and big ag should have skull and crossbones on everything they produce, IMHO.
By all means, do us a favor and refuse to use their products. The rest of us poor, misguided souls will take our chances.