Even better that he invested it. I see it this way - he is perfectly entitled to use the claims on others' labour and resources for his own pleasure. Instead, by investing, he uses the claims to get others to work on projects that create more real wealth for others to enjoy! That seems like virtuous behaviour to me. Very unselfish.

Sure, giving the money away may or may not be more virtuous (depends on who gets it and what they do with it). But surely you would agree with me that spending it on one's own pleasures is less virtuous than either of not spending it, investing it productively or giving it to loved ones?