It looks a lot more balance with these settings (I use units=feet):

Atmosphere:

Vol Color = pure white

V Density = 0.022

V Stepsize = 0.133

V Noise = 0.13

Point Light:

Attenuation = Inverse Square

Atm Str = 0.07

Intensity = 0.05

 

Edge Blend Att = 0.3

 

The Atmosphere Noise only works in conjunction with larger Volume Stepsize settings.