There are lawyers today who specialise in contesting someone's last Will and Testament. One of my daughter's is one of these who specialise in this. Over some years now, she has developed a professional set of skills that specialises in Wills. Like many things in life, nothing is as simple as it might first appear.
Significance is often a hard-fought battle between voicing your opinion and making your voice heard. While both may not strike the reader as being quite different from each other, there is a vast difference between both.