Compromise is the mother of all evil... once, that door is opened it is very difficult to shut. Compromise leads downhill, never up. Esau was a pragmatist... he compromised his birthright to satisfy his hunger and played the fool with the local women, too appease his flesh.
With each act of compromise, the next becomes even easier; until one finds they have lost their way (foundation) completely. Compromise is not of God. God doesn't compromise with evil; with God, it is yeah or nay, black or white, and nothing between. Truth is a constant that never changes, it is the same yesterday, today and tomorrow. The Pragmatist is often required to ignore the truth in order to achieve agreement, something Christian's should abhor knowing where it leads. It is the little foxes that destroy the fruit of the vine... the small compromises that eat away at the substance of a virtuous life.
Pragmatism is based on achieving practical results... worldly outcomes, that often appear to be the progressive thing to do for the moment. It is a philosophy that values action above maintaining one's principals. It often requires one to exchange their principals to achieve little. The consequences of pragmatic decisions, over time, erode the foundation of the righteous... Often leading to the ultimate devaluation of one's core values. The true pragmatist has no core values, nothing that can not be compromised, to achieve what they define as results.
"Blessed is the man that walketh not in the counsel of the ungodly, nor standeth in the way of sinners, nor sitteth in the seat of the scornful... the ungodly are not so, but are like the chaff which the wind driveth away." (Psalm 1:1 & 4) There can be no recompense with the unrighteous, no compromise with the Devil or his minions. Compromise is the mother of all evil... once that door is opened, it is near impossible to close.