A virtue ethicist, would simply call them ethical.

Stanford Encyclopedia of Philosophy:

Virtue ethics is currently one of three major approaches in normative ethics. It may, initially, be identified as the one that emphasizes the virtues, or moral character, in contrast to the approach which emphasizes duties or rules (deontology) or that which emphasizes the consequences of actions (consequentialism).

You might also be interested to read around the Greek word Eudaimonia, Plato:

The good composed of all goods; an ability which suffices for living well; perfection in respect of virtue; resources sufficient for a living creature.

A virtue ethicist, would simply call them ethical.

Stanford Encyclopedia of Philosophy:

Virtue ethics is currently one of three major approaches in normative ethics. It may, initially, be identified as the one that emphasizes the virtues, or moral character, in contrast to the approach which emphasizes duties or rules (deontology) or that which emphasizes the consequences of actions (consequentialism).

This (might?) get around the close-mindedness of 'principled' (deontology) and the moral code of conscientious right-doing (consequentialism).

Have a sniff around the Greek word Eudaimonia also...

Plato:

The good composed of all goods; an ability which suffices for living well; perfection in respect of virtue; resources sufficient for a living creature.

They are a virtue ethicist.

Virtue ethics is currently one of three major approaches in normative ethics. It may, initially, be identified as the one that emphasizes the virtues, or moral character, in contrast to the approach which emphasizes duties or rules (deontology) or that which emphasizes the consequences of actions (consequentialism).

A virtue ethicist, would simply call them ethical.

Stanford Encyclopedia of Philosophy:

Virtue ethics is currently one of three major approaches in normative ethics. It may, initially, be identified as the one that emphasizes the virtues, or moral character, in contrast to the approach which emphasizes duties or rules (deontology) or that which emphasizes the consequences of actions (consequentialism).

You might also be interested to read around the Greek word Eudaimonia, Plato:

The good composed of all goods; an ability which suffices for living well; perfection in respect of virtue; resources sufficient for a living creature.