Upload & Sell: Off
No problem, we each have our own styles and preferences.
I've been picking up work specifically because my "flash" work (no pun intended,) doesn't look like any additional light was used - so that's been a real benefit to me and gaining clients.
Other photogogs prefer the difference in light / colours, and that's fine too if their clients prefer that look as well...!
I must admit, balancing ambient against flash, (particularly when matching colour balance,) can be as frustrating as it is rewarding. It's taken me quite a while to get the balance right when often presented with very unfavourable conditions. Nowadays I can get it just about perfect (ish) so the hard work has paid dividends.
There's no right or wrong with photography, only what we prefer and our clients will pay us for...