I honestly think it wouldn't have made much of a difference. Though Morgan was a gifted and ruthless financier, those traits were not uncommon during the gilded age and individuals such as Mellon and Frick would likely take his place on both the investment and trust forming front.
Edison is more troublesome. He certainly was a brilliant inventor, (though many of his inventions were either collaborations or the works of other men) however his most revolutionary innovation was the creation of a dedicated industrial research laboratory. Nevertheless, Westinghouse will probably end up taking its place. I suspect the biggest impact would be a greater number of firms based around scientific/engineering tinkerers and a few more "American" innovations be discovered first elsewhere. On the other hand, Tesla might remain "productive" for a few decades longer.