Flutter align two items on extremes - one on the left and one on the right

I am trying to align two items at extremes one on the left and one on the right.
I have one row that is aligned to the left and then a child of that row is aligned to the right. However it seems the child row is picking up the alignment property from its parent. This is my code

var SettingsRow = new Row(
mainAxisAlignment: MainAxisAlignment.end,
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Text("Right",softWrap: true,),
],
);

var nameRow = new Row(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Text("Left"),
SettingsRow,
],
);

as a result I get something like this

Left Right
What I would like is

Left Right

Also there is enough space on the Row. My question is why is the child Row not exhibiting its `MainAxisAlignment.end` property ?