False things are lies, despite angling for gain in them.. Thus, not only will a lie work in the area described in blinding people successfully - diametrically opposing the truth of God, but the authority of reality and truth - namely God Himself, has created us to be in tune with Him and His Spiritual truths if we submit to His authority, as we allow Him to be our Father. But Science has nothing to do with it, nor logic - for logic is not my God, and has no authority..And the authority of God is all things real!
You suggest and preach a lie in the point you make - that things done outside of Christ can have power and truth, thus, should we not accept them? Even gain from them?. But to be sure, the truth found here is a matter of Spiritual Warfare.
He is the author of (all) truth and reality. We must receive His wisdom accordingly.. And anything preached differently will be that persons downfall; for there are only two Masters we can serve - One leads to death, and the other leads to Eternal Life.. Let He who has ears and eyes to hear and see be enlightened by God Himself and no one else, otherwise what seems real will fall apart in the fire of judgement. - The only authority to prick and prep, and prepare, and purpose, and participate with therein, and produce based upon - is Himself thru Jesus Christ via the Holy Spirit. His Spiritual inclusion speaking to us first. Anything short of Him, and in all ways Him, is nothing more than fools gold!:
Proverbs 19:5 ESV : A false witness will not go unpunished, and he who breathes out lies will not escape.
Guard your heart and tongue, for what you preach He will hold you accountable to. What seems real to a fool is nothing more than a lie. And he who preaches it, is a false witness.
Let go of every thought and place it in Christ and He will renew your mind. But this first must be your heart that changes. For to doubt God is to be without power in Him. Again, I pray you let go ... and let Him! I don't see you having faith issues, I see you having surrender issues. You seem very capable of faith in the points you have made. You just need to change your points. God will do that for you!