Hm. I find it important in regards of versatility wether a composer successfully adapts or reproduces a style or musical tradition or if he actually manages to make it something of his own. Goldsmith I would probably rather see in the first category, Morricone in the second.
When it comes to electronic music, almost every composer does it, even John Williams, but rarely orchestral composers really seem to be at home with it, and the other way around as well, skilled electronic musicians muddling through the symphony orchestra.