The difference between a tactical game with simple morals and roleplaying is just that, if you're not worrying and dealing with moral issues you aren't roleplaying, you're simply pushing a miniature figure on a playing board.
Both types of games can be fun, but they are two different games, and you need to be aware of the group you're running/playing in.
No, tactical gaming vs roleplaying goes to group's taste and style, it is not dependent on the actual game rules design, though naturally certain elements of rules will be better at helping instead of hindering roleplay, just like certain elements of rules will be better at helping instead of hindering tactical gaming.
In D&D this dichotomy goes back to the creators, with Gygax being into tactical gaming, and Arneson being a roleplayer into complex world creation and story.
It goes without saying that you can find numerous first person accounts from DMs and fellow players on how Gygax was a terrible roleplayer and ran tactical games, while Arneson was a great roleplayer who ran games in complex worlds, different strokes and all.