Those in government with greater authority and security clearance are, by law, subject to closer scrutiny than the average citizen. Our President holds the highest military and security authority in the country, and thus has the responsibility to provide access to information to ensure that he is ALWAYS acting on behalf of the country rather than his own personal gain. The average citizen does not carry around the nuclear codes and thus is not subject to the same level of background investigation.

If Mr. Reichert is truly interested in a thorough investigation of Trump's conflicts of interest while maintaining Trump's privacy, he could invoke Title 26, US Code, Section 6103, paragraph f.1 to examine Trump's returns in a closed executive session of the Ways and Means committee, without providing public access to those returns. 

And/or, he could sign Discharge Petition 115-1, which upon gathering 218 signatures,  would force a vote on HR305 Presidential Tax Transparency Act.