Symmetry is overrated.
If you can sharpen to "food sharp", you really don't gain much by going to "show-off sharp". By food sharp I mean you can cut brown onion skins, ripe tomatos, and rotten meats, fruits and vegetables cleanly, like a TV chef. Show off sharp to me means crisp, straight lines with no wobble or random scratches, a functional edge that looks great!
I have a wicked expensive set of Wicked Edge tools. That system will produce an elegant edge, but for most tasks a 1.2K stone and one stropping stage freehand gets me shoulder to shoulder with the bright and shiny Wicked Edge edge. My freehand bevel will not look as good as the blade done on the WE system, but it will pop hairs and cut receipt paper and impress the heck out of many friends and associates.
Bright, shiny, symmetrical bevels are freaking handsome, they always catch my eye, but their practical advantage is not that great for me, or for most users. I don't think!