What is the significance of having Myrtle in the Great Gatsby?

Myrtle was the juxtaposition of Daisy. While Daisy provided him with a wealthy, acceptable social image, she was not much more to him than a mere possession. Myrtle provided Tom to transcend or break social expectations. Tom was so rich; he could wade into any socio-economic situation and use the people he comes into contact with. The filthy rich can touch anything they like as well as destroy anything they like.