In Robert Merton’s typology of the relationships between prejudice and discrimination, this builder would be a "nonprejudiced discriminator ".
The are six types of discrimination excluding discrimination are;
nonprejudiced nondiscriminators
nonprejudiced discriminators
prejudiced nondiscriminators
prejudiced discriminators
and individual discrimination.
A nonprejudiced discriminator could be somebody who settles on decisions in view of ethnicity yet not spurred by negative mentalities.
For example;
(1) one who dates inside their religious gathering to protect a minority religion
or
(2) organize racism (allude the gathering to that definition).