$300 savings for the company perhaps,
but what about costs incurred having to visit people to measure usage?
Very high levels of shortwave radio signals (we are talking powerful radar here) have been documented to have adverse health effects. I think some people do a linear interpolation between zero effect at zero W to a handful of points of massive problems in the MW range, with little or no data in the intermediate range. I very much doubt that damage at the levels experienced is real. All the symptoms described (including those of the diabetics) could be explained by stress (caused by the fear of the effects of radio signals, perhaps?). BTW, I am not saying the complaints are not real, I am saying that the cause might be different.