I’m assuming you are referring to pictures that can be found on the internet and Facebook showing people in full protective gear apparently applying pesticides. Some of these images can look scary, but I’ve never seen one that includes information about or documents what is really happening in the photo. Without that information, it is almost impossible to answer your question – or even draw conclusions about the situation in these photos. It is quite possible that these pictures are not of Monsanto products or Monsanto employees.
I will share that our employees do wear extensive protective gear when they are doing a small scale testing on a new pesticide or formulation for which safety information has not yet been determined. And when safety information has not yet been determined, we will always take precautions.
When the U.S. Environmental Protection Agency (EPA) allows for the sale and distribution of a pesticide, it also sets the requirements for what protective gear is required. For even the most favorable products (Category VI), the EPA requires a long-sleeved shirt and long pants, shoes and socks. For example, Yellow Jacket Special Dusting Sulfur (approved for organic production) requires applicators to wear long-sleeved shirt and long pants, chemical resistant gloves made of waterproof material, shoes plus socks and protective eyewear. (Source - http://www.georgiagulfsulfur.com/images/86534_YJDustSulfurfop.pdf)
Last, I recommend you review this response by my colleague to a similar question about the Monsanto Cafeteria: http://gmoanswers.com/ask/if-gmos-are-so-great-why-does-monsanto-serve-organic-produce-its-cafeteria.